seismic response control of structures with shape memory alloy dampers



T. Datta K. Seismic Analysis of Structures T. Datta K. Seismic Analysis of Structures Новинка

T. Datta K. Seismic Analysis of Structures

13124.38 руб. или Купить в рассрочку!
While numerous books have been written on earthquakes, earthquake resistance design, and seismic analysis and design of structures, none have been tailored for advanced students and practitioners, and those who would like to have most of the important aspects of seismic analysis in one place. With this book, readers will gain proficiencies in the following: fundamentals of seismology that all structural engineers must know; various forms of seismic inputs; different types of seismic analysis like, time and frequency domain analyses, spectral analysis of structures for random ground motion, response spectrum method of analysis; equivalent lateral load analysis as given in earthquake codes; inelastic response analysis and the concept of ductility; ground response analysis and seismic soil structure interaction; seismic reliability analysis of structures; and control of seismic response of structures. Provides comprehensive coverage, from seismology to seismic control Contains useful empirical equations often required in the seismic analysis of structures Outlines explicit steps for seismic analysis of MDOF systems with multi support excitations Works through solved problems to illustrate different concepts Makes use of MATLAB, SAP2000 and ABAQUAS in solving example problems of the book Provides numerous exercise problems to aid understanding of the subject As one of the first books to present such a comprehensive treatment of the topic, Seismic Analysis of Structures is ideal for postgraduates and researchers in Earthquake Engineering, Structural Dynamics, and Geotechnical Earthquake Engineering. Developed for classroom use, the book can also be used for advanced undergraduate students planning for a career or further study in the subject area. The book will also better equip structural engineering consultants and practicing engineers in the use of standard software for seismic analysis of buildings, bridges, dams, and towers. Lecture materials for instructors available at www.wiley.com/go/dattaseismic
Farzad Naeim Basic Structural Dynamics Farzad Naeim Basic Structural Dynamics Новинка

Farzad Naeim Basic Structural Dynamics

9135.54 руб. или Купить в рассрочку!
A concise introduction to structural dynamics and earthquake engineering Basic Structural Dynamics serves as a fundamental introduction to the topic of structural dynamics. Covering single and multiple-degree-of-freedom systems while providing an introduction to earthquake engineering, the book keeps the coverage succinct and on topic at a level that is appropriate for undergraduate and graduate students. Through dozens of worked examples based on actual structures, it also introduces readers to MATLAB, a powerful software for solving both simple and complex structural dynamics problems. Conceptually composed of three parts, the book begins with the basic concepts and dynamic response of single-degree-of-freedom systems to various excitations. Next, it covers the linear and nonlinear response of multiple-degree-of-freedom systems to various excitations. Finally, it deals with linear and nonlinear response of structures subjected to earthquake ground motions and structural dynamics-related code provisions for assessing seismic response of structures. Chapter coverage includes: Single-degree-of-freedom systems Free vibration response of SDOF systems Response to harmonic loading Response to impulse loads Response to arbitrary dynamic loading Multiple-degree-of-freedom systems Introduction to nonlinear response of structures Seismic response of structures If you're an undergraduate or graduate student or a practicing structural or mechanical engineer who requires some background on structural dynamics and the effects of earthquakes on structures, Basic Structural Dynamics will quickly get you up to speed on the subject without sacrificing important information.
Mohammad Elahinia Shape Memory Alloy Actuators. Design, Fabrication and Experimental Evaluation Mohammad Elahinia Shape Memory Alloy Actuators. Design, Fabrication and Experimental Evaluation Новинка

Mohammad Elahinia Shape Memory Alloy Actuators. Design, Fabrication and Experimental Evaluation

10658.13 руб. или Купить в рассрочку!
This book provides a systematic approach to realizing NiTi shape memory alloy actuation, and is aimed at science and engineering students who would like to develop a better understanding of the behaviors of SMAs, and learn to design, simulate, control, and fabricate these actuators in a systematic approach. Several innovative biomedical applications of SMAs are discussed. These include orthopedic, rehabilitation, assistive, cardiovascular, and surgery devices and tools. To this end unique actuation mechanisms are discussed. These include antagonistic bi-stable shape memory-superelastic actuation, shape memory spring actuation, and multi axial tension-torsion actuation. These actuation mechanisms open new possibilities for creating adaptive structures and biomedical devices by using SMAs.
ECCS – European Convention for Constructional Steelwork Design of Steel Structures for Buildings in Seismic Areas. Eurocode 8: Design of Structures for Earthquake Resistance. Part 1: General Rules, Seismic Action and Rules for Buildings ECCS – European Convention for Constructional Steelwork Design of Steel Structures for Buildings in Seismic Areas. Eurocode 8: Design of Structures for Earthquake Resistance. Part 1: General Rules, Seismic Action and Rules for Buildings Новинка

ECCS – European Convention for Constructional Steelwork Design of Steel Structures for Buildings in Seismic Areas. Eurocode 8: Design of Structures for Earthquake Resistance. Part 1: General Rules, Seismic Action and Rules for Buildings

4891.44 руб. или Купить в рассрочку!
This volume elucidates the design criteria and principles for steel structures under seismic loads according to Eurocode 8-1. Worked Examples illustrate the application of the design rules. Two case studies serve as best-practice samples.
Millard Alain Dynamic Behavior of Concrete and Seismic Engineering Millard Alain Dynamic Behavior of Concrete and Seismic Engineering Новинка

Millard Alain Dynamic Behavior of Concrete and Seismic Engineering

15208.84 руб. или Купить в рассрочку!
While the static behavior of concrete has been the subject of numerous works, the same cannot be said for the dynamic behavior. This book sets out to remedy this situation: it begins by presenting the most frequently used experimental techniques in the study of the dynamic behavior of concrete, then continues by examining seismicity and seismic behavior, soil behavior, models of concrete structures subject to seismic activity, seismic calculation methods of structures, and paraseismic engineering.
Ranjan Vepa Dynamics of Smart Structures Ranjan Vepa Dynamics of Smart Structures Новинка

Ranjan Vepa Dynamics of Smart Structures

12562.09 руб. или Купить в рассрочку!
Dynamics of Smart Structures is a practical, concise and integrated text that provides an introduction to the fundamental principles of a field that has evolved over the recent years into an independent and identifiable subject area. Bringing together the concepts, techniques and systems associated with the dynamics and control of smart structures, it comprehensively reviews the differing smart materials that are employed in the development of the smart structures and covers several recent developments in the field of structural dynamics. Dynamics of Smart Structures has been developed to complement the author's new interdisciplinary programme of study at Queen Mary, University of London that includes courses on emerging and new technologies such as biomimetic robotics, smart composite structures, micro-electro-mechanical systems (MEMS) and their applications and prosthetic control systems. It includes chapters on smart materials and structures, transducers for smart structures, fundamentals of structural control, dynamics of continuous structures, dynamics of plates and plate-like structures, dynamics of piezoelectric media, mechanics of electro-actuated composite structures, dynamics of thermo-elastic media: shape memory alloys, and controller designs for flexible structures.
Ranjan Vepa Dynamics of Smart Structures Ranjan Vepa Dynamics of Smart Structures Новинка

Ranjan Vepa Dynamics of Smart Structures

12738.37 руб. или Купить в рассрочку!
Dynamics of Smart Structures is a practical, concise and integrated text that provides an introduction to the fundamental principles of a field that has evolved over the recent years into an independent and identifiable subject area. Bringing together the concepts, techniques and systems associated with the dynamics and control of smart structures, it comprehensively reviews the differing smart materials that are employed in the development of the smart structures and covers several recent developments in the field of structural dynamics. Dynamics of Smart Structures has been developed to complement the author's new interdisciplinary programme of study at Queen Mary, University of London that includes courses on emerging and new technologies such as biomimetic robotics, smart composite structures, micro-electro-mechanical systems (MEMS) and their applications and prosthetic control systems. It includes chapters on smart materials and structures, transducers for smart structures, fundamentals of structural control, dynamics of continuous structures, dynamics of plates and plate-like structures, dynamics of piezoelectric media, mechanics of electro-actuated composite structures, dynamics of thermo-elastic media: shape memory alloys, and controller designs for flexible structures.
Philippe Gueguen Seismic Vulnerability of Structures Philippe Gueguen Seismic Vulnerability of Structures Новинка

Philippe Gueguen Seismic Vulnerability of Structures

12348.5 руб. или Купить в рассрочку!
This book is focused on the seismic vulnerability assessment methods, applied to existing buildings, describing several behaviors and new approaches for assessment on a large scale (urban area). It is clear that the majority of urban centers are composed of old buildings, designed according to concepts and rules that are inadequate to the seismic context. How to assess the vulnerability of existing buildings is an essential step to improve the management of seismic risk and its prevention policy. After some key reminders, this book describes seismic vulnerability methods applied to a large number of structures (buildings and bridges) in moderate (France, Switzerland) and strong seismic prone regions (Italy, Greece). Contents 1. Seismic Vulnerability of Existing Buildings: Observational and Mechanical Approaches for Application in Urban Areas, Sergio Lagomarsino and Serena Cattari. 2. Mechanical Methods: Fragility Curves and Pushover Analysis, Caterina Negulescu and Pierre Gehl. 3. Seismic Vulnerability and Loss Assessment for Buildings in Greece, Andreas J. Kappos. 4. Experimental Method: Contribution of Ambient Vibration Recordings to the Vulnerability Assessment, Clotaire Michel and Philippe Guéguen. 5. Numerical Model: Simplified Strategies for Vulnerability Seismic Assessment of Existing Structures, Cédric Desprez, Panagiotis Kotronis and Stéphane Grange. 6. Approach Based on the Risk Used in Switzerland, Pierino Lestuzzi. 7. Preliminary Evaluation of the Seismic Vulnerability of Existing Bridges, Denis Davi. About the Authors Philippe Guéguen is a Senior IFSTTAR Researcher at ISTerre, Joseph Fourier University Grenoble 1, France
Izuru Takewaki Building Control with Passive Dampers. Optimal Performance-based Design for Earthquakes Izuru Takewaki Building Control with Passive Dampers. Optimal Performance-based Design for Earthquakes Новинка

Izuru Takewaki Building Control with Passive Dampers. Optimal Performance-based Design for Earthquakes

The recent introduction of active and passive structural control methods has given structural designers powerful tools for performance-based design. However, structural engineers often lack the tools for the optimal selection and placement of such systems. In Building Control with Passive Dampers , Takewaki brings together most the reliable, state-of-the-art methods in practice around the world, arming readers with a real sense of how to address optimal selection and placement of passive control systems. The first book on optimal design, sizing, and location selection of passive dampers Combines theory and practical applications Describes step-by-step how to obtain optimal damper size and placement Covers the state-of-the-art in optimal design of passive control Integrates the most reliable techniques in the top literature and used in practice worldwide Written by a recognized expert in the area MATLAB code examples available from the book’s Companion Website This book is essential for post-graduate students, researchers, and design consultants involved in building control. Professional engineers and advanced undergraduates interested in seismic design, as well as mechanical engineers looking for vibration damping techniques, will also find this book a helpful reference. Code examples available at www.wiley.com/go/takewaki
Izuru Takewaki Building Control with Passive Dampers. Optimal Performance-based Design for Earthquakes Izuru Takewaki Building Control with Passive Dampers. Optimal Performance-based Design for Earthquakes Новинка

Izuru Takewaki Building Control with Passive Dampers. Optimal Performance-based Design for Earthquakes

14822.83 руб. или Купить в рассрочку!
The recent introduction of active and passive structural control methods has given structural designers powerful tools for performance-based design. However, structural engineers often lack the tools for the optimal selection and placement of such systems. In Building Control with Passive Dampers , Takewaki brings together most the reliable, state-of-the-art methods in practice around the world, arming readers with a real sense of how to address optimal selection and placement of passive control systems. The first book on optimal design, sizing, and location selection of passive dampers Combines theory and practical applications Describes step-by-step how to obtain optimal damper size and placement Covers the state-of-the-art in optimal design of passive control Integrates the most reliable techniques in the top literature and used in practice worldwide Written by a recognized expert in the area MATLAB code examples available from the book’s Companion Website This book is essential for post-graduate students, researchers, and design consultants involved in building control. Professional engineers and advanced undergraduates interested in seismic design, as well as mechanical engineers looking for vibration damping techniques, will also find this book a helpful reference. Code examples available at www.wiley.com/go/takewaki
Guoqiang Li Self-Healing Composites. Shape Memory Polymer Based Structures Guoqiang Li Self-Healing Composites. Shape Memory Polymer Based Structures Новинка

Guoqiang Li Self-Healing Composites. Shape Memory Polymer Based Structures

11962.49 руб. или Купить в рассрочку!
In this book, the self-healing of composite structures with shape memory polymer as either matrix or embedded suture is systematically discussed. Self-healing has been well known in biological systems for many years: a typical example is the self-healing of human skin. Whilst a minor wound can be self-closed by blood clotting, a deep and wide cut needs external help by suturing. Inspired by this observation, this book proposes a two-step close-then-heal (CTH) scheme for healing wide-opened cracks in composite structures–by constrained shape recovery first, followed by molecular healing. It is demonstrated that the CTH scheme can heal wide-opened structural cracks repeatedly, efficiently, timely, and molecularly. It is believed that self-healing represents the next-generation technology and will become an engineering reality in the near future. The book consists of both fundamental background and practical skills for implementing the CTH scheme, with additional focus on understanding strain memory versus stress memory and healing efficiency evaluation under various fracture modes. Potential applications to civil engineering structures, including sealant for bridge decks and concrete pavements, and rutting resistant asphalt pavements, are also explored. This book will help readers to understand this emerging field, and to establish a framework for new innovation in this direction. Key features: explores potential applications of shape memory polymers in civil engineering structures, which is believed to be unique within the literature balanced testing and mathematical modeling, useful for both academic researchers and practitioners the self-healing scheme is based on physical change of polymers and is written in an easy to understand style for engineering professionals without a strong background in chemistry
Syed Kamil Nickel Free Titanium Based Shape Memory Alloys Syed Kamil Nickel Free Titanium Based Shape Memory Alloys Новинка

Syed Kamil Nickel Free Titanium Based Shape Memory Alloys

Biomedical shape memory alloys are required to have a superior corrosion resistance, biocompatibility and stable shape memory properties. Among many shape memory alloys, only NiTi alloys have been widely applied for biomedical applications, because they satisfy the above requirements. However, it has been pointed out that pure nickel is a toxic element and cause nickel hypersensitivity. It is preferable to develop absolutely safe nickel free titanium based shape memory alloys composed of non-toxic elements such as niobium for biomedical applications. In this book, the effect of molybdenum addition in Ti-Nb binary alloy was investigated. Two alloys with varying compositions namely alloy 1 (Ti-26at%Nb) and alloy 2 (Ti-26at%Nb-0.1at%Mo) were developed. After homogenization and cold rolling, samples of dimensions 30×3×0.86 mm were prepared using diamond cutting machine. The prepared samples were solution treated and then subjected to different tests to evaluate their properties. There is slight increase in micro-hardness (Hv) with increase in molybdenum. XRD spectra revealed the presence of two phases in the solution treated samples, α-martensite (Ti4Nb) and retained austenite (β).
Victor Lyatkher M. Seismic Loads Victor Lyatkher M. Seismic Loads Новинка

Victor Lyatkher M. Seismic Loads

14845.97 руб. или Купить в рассрочку!
Earthquakes are a way of life on Earth, and, whether you live in an area that is often affected by earthquakes or not, every building, every road, every bridge, and, in fact, almost everything constructed by humans in which we walk, sleep, live, sit, or visit, has to be constructed to withstand an earthquake, by following local, regional, or national codes, laws, and regulations. Further to this, the science and engineering behind these constructions go further than what is mandated by government as a part of their practice. All construction, and, in general, all life on Earth, has some risk of seismic impacts. A comprehensive description of any seismic action may be given only on a probabilistic basis and, in general, is very bulky and quite uncertain. However, for a variety of structures or systems that meet fairly simple models of behavior during earthquakes, a general description of the seismic action is not required, for prediction of the status of such facilities or systems may be sufficient to define one or more common parameters of seismic impact. Thus, it makes sense to search for optimal parameters of influence in which optimality is understood with the greatest ease with sufficient information. This book contains a description of several models of seismic effects and examples of implementation of these models at specific sites. Using this information, scientists and engineers can design structures that are stronger, safer, and longer-lasting. It is a must-have for any scientist, engineer, or student working in or researching seismic loads and constructions with a view toward withstanding seismic activity.
Sundaresan Sindhuja Seismic Reliability of Dam Structures Sundaresan Sindhuja Seismic Reliability of Dam Structures Новинка

Sundaresan Sindhuja Seismic Reliability of Dam Structures

Reliability analysis of structures implies the estimate of the limit state probabilities of a structure under adverse/environmental loading. Most important aspect of seismic reliability analysis is identification of all uncertainties, methods for modeling and analysis, analytical formulation of the limit state surface and integration of probability density function. In the seismic reliability analysis of the dam structure, the limit state probability of the structure is integrated with the seismic risk of the site. In this study, Coulee concrete gravity dam structure is modeled and seismic reliability of the dam structure in the presence of full reservoir and empty reservoir are analyzed. The dam-reservoir and reservoir-foundation interactions are considered in the study. The transient analysis is done by considering El Centro and Loma Prieta earthquake record. The randomness of ground motion, uncertainties in its occurrence, definition of its intensity parameters are considered in seismic reliability analysis. The material uncertainty of the dam is included in the study.
Luigi Sarno Di Fundamentals of Earthquake Engineering. From Source to Fragility Luigi Sarno Di Fundamentals of Earthquake Engineering. From Source to Fragility Новинка

Luigi Sarno Di Fundamentals of Earthquake Engineering. From Source to Fragility

9516.18 руб. или Купить в рассрочку!
Fundamentals of Earthquake Engineering: From Source to Fragility, Second Edition combines aspects of engineering seismology, structural and geotechnical earthquake engineering to assemble the vital components required for a deep understanding of response of structures to earthquake ground motion, from the seismic source to the evaluation of actions and deformation required for design, and culminating with probabilistic fragility analysis that applies to individual as well as groups of buildings. Basic concepts for accounting for the effects of soil-structure interaction effects in seismic design and assessment are also provided in this second edition. The nature of earthquake risk assessment is inherently multi-disciplinary. Whereas this book addresses only structural safety assessment and design, the problem is cast in its appropriate context by relating structural damage states to societal consequences and expectations, through the fundamental response quantities of stiffness, strength and ductility. This new edition includes material on the nature of earthquake sources and mechanisms, various methods for the characterization of earthquake input motion, effects of soil-structure interaction, damage observed in reconnaissance missions, modeling of structures for the purposes of response simulation, definition of performance limit states, fragility relationships derivation, features and effects of underlying soil, structural and architectural systems for optimal seismic response, and action and deformation quantities suitable for design. Key features: Unified and novel approach: from source to fragility Clear conceptual framework for structural response analysis, earthquake input characterization, modelling of soil-structure interaction and derivation of fragility functions Theory and relevant practical applications are merged within each chapter Contains a new chapter on the derivation of fragility Accompanied by a website containing illustrative slides, problems with solutions and worked-through examples Fundamentals of Earthquake Engineering: From Source to Fragility, Second Edition is designed to support graduate teaching and learning, introduce practising structural and geotechnical engineers to earthquake analysis and design problems, as well as being a reference book for further studies.
Xiwen Wang Relative Fidelity Processing of Seismic Data. Methods and Applications Xiwen Wang Relative Fidelity Processing of Seismic Data. Methods and Applications Новинка

Xiwen Wang Relative Fidelity Processing of Seismic Data. Methods and Applications

15225.89 руб. или Купить в рассрочку!
This book presents a comprehensive overview of relative fidelity preservation processing methods and their applications within the oil and gas sector. Four key principles for wide-frequency relative fidelity preservation processing are illustrated throughout the text. Seismic broadband acquisition is the basis for relative fidelity preservation processing and the influence of seismic acquisition on data processing is also analyzed. The methods and principles of Kirchhoff integral migration, one-way wave equation migration and reverse time migration are also introduced and illustrated clearly. Current research of relative amplitude preservation migration algorithms is introduced, and the corresponding numerical results are also shown. RTM (reverse time migration) imaging methods based on GPU/CPU systems for complicated structures are represented. This includes GPU/CPU high performance calculations and its application to seismic exploration, two-way wave extrapolation operator and boundary conditions, imaging conditions and low frequency noise attenuation, and GPU/CPU system based RTM imaging algorithms. Migration velocity model building methods in depth domain for complicated structures are illustrated in this book. The research status and development of velocity model building are introduced. And the impacting factors are also discussed. Several different velocity model building methods are also represented and analyzed. The book also provides the reader with several case studies of field seismic data imaging in different kinds of basins to show the methods used in practice.
Mohd Rizwan Bhina, D. K. Paul Assessment of R. C. Flat Slab Building Mohd Rizwan Bhina, D. K. Paul Assessment of R. C. Flat Slab Building Новинка

Mohd Rizwan Bhina, D. K. Paul Assessment of R. C. Flat Slab Building

Doctoral Thesis / Dissertation from the year 2013 in the subject Engineering - Civil Engineering, grade: B, , course: Master of technology - Structural Dynamics, language: English, abstract: Flat-Slab building is very popular from the aesthetic and architectural point of view. From functional aspect a flat-slab building is more efficient than a R.C. frame building. So, construction of Flat-Slab building is increasing also in high seismic zone. Sometimes international building codes remain silent about the seismic response of flat slab buildings. In this paper the response of Flat-Slab building and a normal symmetric R.C. frame building of same dimension have been studied for varying seismic intensities. Static, Response Spectrum, Pushover, and Time history analysis have been performed to assess the performance of the two buildings. The costs of construction for these two buildings have also been compared. An extensive study on lumped plasticity model as per FEMA 356 with varying position of plastic hinge and its effect on pushover curve has also discussed in the paper. The paper also comments on the plastic hinge pattern.
Guozheng Kang Cyclic Plasticity of Engineering Materials. Experiments and Models Guozheng Kang Cyclic Plasticity of Engineering Materials. Experiments and Models Новинка

Guozheng Kang Cyclic Plasticity of Engineering Materials. Experiments and Models

11948.86 руб. или Купить в рассрочку!
New contributions to the cyclic plasticity of engineering materials Written by leading experts in the field, this book provides an authoritative and comprehensive introduction to cyclic plasticity of metals, polymers, composites and shape memory alloys. Each chapter is devoted to fundamentals of cyclic plasticity or to one of the major classes of materials, thereby providing a wide coverage of the field. The book deals with experimental observations on metals, composites, polymers and shape memory alloys, and the corresponding cyclic plasticity models for metals, polymers, particle reinforced metal matrix composites and shape memory alloys. Also, the thermo-mechanical coupled cyclic plasticity models are discussed for metals and shape memory alloys. Key features: Provides a comprehensive introduction to cyclic plasticity Presents Macroscopic and microscopic observations on the ratchetting of different materials Establishes cyclic plasticity constitutive models for different materials. Analysis of cyclic plasticity in engineering structures. This book is an important reference for students, practicing engineers and researchers who study cyclic plasticity in the areas of mechanical, civil, nuclear, and aerospace engineering as well as materials science.
William Ashcroft A Petroleum Geologist's Guide to Seismic Reflection William Ashcroft A Petroleum Geologist's Guide to Seismic Reflection Новинка

William Ashcroft A Petroleum Geologist's Guide to Seismic Reflection

13583.73 руб. или Купить в рассрочку!
This book is written for advanced earth science students, geologists, petroleum engineers and others who want to get quickly ‘up to speed’ on the interpretation of reflection seismic data. It is a development of material given to students on the MSc course in Petroleum Geology at Aberdeen University and takes the form of a course manual rather than a systematic textbook. It can be used as a self-contained course for individual study, or as the basis for a class programme. The book clarifies those aspects of the subject that students tend to find difficult, and provides insights through practical tutorials which aim to reinforce and deepen understanding of key topics and provide the reader with a measure of feedback on progress. Some tutorials may only involve drawing simple diagrams, but many are computer-aided (PC based) with graphics output to give insight into key steps in seismic data processing or into the seismic response of some common geological scenarios. Part I of the book covers basic ideas and it ends with two tutorials in 2-D structural interpretation. Part II concentrates on the current seismic reflection contribution to reservoir studies, based on 3-D data.
Cho W. S. To Introduction to Dynamics and Control in Mechanical Engineering Systems Cho W. S. To Introduction to Dynamics and Control in Mechanical Engineering Systems Новинка

Cho W. S. To Introduction to Dynamics and Control in Mechanical Engineering Systems

7852.75 руб. или Купить в рассрочку!
One of the first books to provide in-depth and systematic application of finite element methods to the field of stochastic structural dynamics The parallel developments of the Finite Element Methods in the 1950’s and the engineering applications of stochastic processes in the 1940’s provided a combined numerical analysis tool for the studies of dynamics of structures and structural systems under random loadings. In the open literature, there are books on statistical dynamics of structures and books on structural dynamics with chapters dealing with random response analysis. However, a systematic treatment of stochastic structural dynamics applying the finite element methods seems to be lacking. Aimed at advanced and specialist levels, the author presents and illustrates analytical and direct integration methods for analyzing the statistics of the response of structures to stochastic loads. The analysis methods are based on structural models represented via the Finite Element Method. In addition to linear problems the text also addresses nonlinear problems and non-stationary random excitation with systems having large spatially stochastic property variations.
Konstantinidis Dimitrios Mechanics of Rubber Bearings for Seismic and Vibration Isolation Konstantinidis Dimitrios Mechanics of Rubber Bearings for Seismic and Vibration Isolation Новинка

Konstantinidis Dimitrios Mechanics of Rubber Bearings for Seismic and Vibration Isolation

10728.36 руб. или Купить в рассрочку!
Widely used in civil, mechanical and automotive engineer­ing since the early 1980s, multilayer rubber bearings have been used as seismic isolation devices for buildings in highly seismic areas in many countries. Their appeal in these applications comes from their ability to provide a component with high stiffness in one direction with high flexibility in one or more orthogonal directions. This combination of vertical stiffness with horizontal flexibility, achieved by reinforcing the rubber by thin steel shims perpendicular to the vertical load, enables them to be used as seismic and vibra­tion isolators for machinery, buildings and bridges. Mechanics of Rubber Bearings for Seismic and Vibration Isolation collates the most important information on the mechanics of multilayer rubber bearings. It explores a unique and comprehensive combination of relevant topics, covering all prerequisite fundamental theory and providing a number of closed-form solutions to various boundary value problems as well as a comprehensive historical overview on the use of isolation. Many of the results presented in the book are new and are essential for a proper understanding of the behavior of these bearings and for the design and analysis of vibration or seismic isolation systems. The advantages afforded by adopting these natural rubber systems is clearly explained to designers and users of this technology, bringing into focus the design and specification of bearings for buildings, bridges and industrial structures. This comprehensive book: includes state of the art, as yet unpublished research along with all required fundamental concepts; is authored by world-leading experts with over 40 years of combined experience on seismic isolation and the behavior of multilayer rubber bearings; is accompanied by a website at www.wiley.com/go/kelly The concise approach of Mechanics of Rubber Bearings for Seismic and Vibration Isolation forms an invaluable resource for graduate students and researchers/practitioners in structural and mechanical engineering departments, in particular those working in seismic and vibration isolation.
Alrishawi Samer Implementation of Cable Restrainers in Seismic Retrofitting of Bridges Alrishawi Samer Implementation of Cable Restrainers in Seismic Retrofitting of Bridges Новинка

Alrishawi Samer Implementation of Cable Restrainers in Seismic Retrofitting of Bridges

Highway bridges in seismic prone areas suffer a serious structural issues when subjected to a severe earthquake, which are the longitudinal hinge displacements. The hinge displacements might put the structure integrity in jeopardy when they exceed certain limits. High hinge displacements can cause fatal effects on the bridge structure including; bearing failure, unseating, and pounding of the adjacent superstructure decks. The aim of this study is to implement a numerical model which characterize the standard properties of a highway bridge and put it under a high intensity seismic excitation to examine its response. Then attempting to enhance the structure response using cable restrainers as means of displacement control. A parametric study is to be performed to investigate the effect of the restrainer material properties (Stiffness and Effective damping) on the efficiency of the cable restrainer in performing its intended purpose. The bridge was modelled and analysed using CSIBridge® finite element package.
Cho W. S. To Stochastic Structural Dynamics. Application of Finite Element Methods Cho W. S. To Stochastic Structural Dynamics. Application of Finite Element Methods Новинка

Cho W. S. To Stochastic Structural Dynamics. Application of Finite Element Methods

11191.45 руб. или Купить в рассрочку!
One of the first books to provide in-depth and systematic application of finite element methods to the field of stochastic structural dynamics The parallel developments of the Finite Element Methods in the 1950’s and the engineering applications of stochastic processes in the 1940’s provided a combined numerical analysis tool for the studies of dynamics of structures and structural systems under random loadings. In the open literature, there are books on statistical dynamics of structures and books on structural dynamics with chapters dealing with random response analysis. However, a systematic treatment of stochastic structural dynamics applying the finite element methods seems to be lacking. Aimed at advanced and specialist levels, the author presents and illustrates analytical and direct integration methods for analyzing the statistics of the response of structures to stochastic loads. The analysis methods are based on structural models represented via the Finite Element Method. In addition to linear problems the text also addresses nonlinear problems and non-stationary random excitation with systems having large spatially stochastic property variations. A systematic treatment of stochastic structural dynamics applying the finite element methods Highly illustrated throughout and aimed at advanced and specialist levels, it focuses on computational aspects instead of theory Emphasizes results mainly in the time domain with limited contents in the time-frequency domain Presents and illustrates direction integration methods for analyzing the statistics of the response of linear and nonlinear structures to stochastic loads Under Author Information – one change of word to existing text: He is a Fellow of the American Society of Mechanical Engineers (ASME)........
Malburet François Mechanical Instability Malburet François Mechanical Instability Новинка

Malburet François Mechanical Instability

12738.37 руб. или Купить в рассрочку!
This book presents a study of the stability of mechanical systems, i.e. their free response when they are removed from their position of equilibrium after a temporary disturbance. After reviewing the main analytical methods of the dynamical stability of systems, it highlights the fundamental difference in nature between the phenomena of forced resonance vibration of mechanical systems subjected to an imposed excitation and instabilities that characterize their free response. It specifically develops instabilities arising from the rotor–structure coupling, instability of control systems, the self-sustained instabilities associated with the presence of internal damping and instabilities related to the fluid–structure coupling for fixed and rotating structures. For an original approach following the analysis of instability phenomena, the book provides examples of solutions obtained by passive or active methods.
Rao C. Lakshmana Modelling of Engineering Materials Rao C. Lakshmana Modelling of Engineering Materials Новинка

Rao C. Lakshmana Modelling of Engineering Materials

7945.93 руб. или Купить в рассрочку!
Modelling of Engineering Materials presents the background that is necessary to understand the mathematical models that govern the mechanical response of engineering materials. The book provides the basics of continuum mechanics and helps the reader to use them to understand the development of nonlinear material response of solids and fluids used in engineering applications. A brief review of simplistic and linear models used to characterize the mechanical response of materials is presented. This is followed by a description of models that characterize the nonlinear response of solids and fluids from first principles. Emphasis is given to popular models that characterize the nonlinear response of materials. The book also presents case studies of materials, where a comprehensive discussion of material characterization, experimental techniques and constitutive model development, is presented. Common principles that govern material response of both solids and fluids within a unified framework are outlined. Mechanical response in the presence of non-mechanical fields such as thermal and electrical fields applied to special materials such as shape memory materials and piezoelectric materials is also explained within the same framework.
Xinming Qiu Introduction to Impact Dynamics Xinming Qiu Introduction to Impact Dynamics Новинка

Xinming Qiu Introduction to Impact Dynamics

8754.89 руб. или Купить в рассрочку!
Fundamental guidance—including concepts, models, and methodology—for better understanding the dynamic behavior of materials and for designing for objects and structures under impact or intensive dynamic loading This book introduces readers to the dynamic response of structures with important emphasis on the material behavior under dynamic loadings. It utilizes theoretical modelling and analytical methods in order to provide readers with insight into the various phenomena. The content of the book is an introduction to the fundamental aspects, which underpin many important industrial areas. These areas include the safety of various transportation systems and a range of different structures when subjected to various impact and dynamic loadings, including terrorist attacks. Presented in three parts—Stress Waves in Solids, Dynamic Behaviors of Materials Under High Strain Rate, and Dynamic Response of Structures to Impact and Pulse Loading—Introduction to Impact Dynamics covers elastic waves, rate dependent behaviors of materials, effects of tensile force, inertial effects, and more. The book also features numerous case studies to aid in facilitating learning. The strength of the book is its clarity, balanced coverage, and practical examples, which allow students to learn the overall knowledge of impact dynamics in a limited time whilst directing them to explore more advanced technical knowledge and skills. Considers both the dynamic behavior of materials and stress waves, and the dynamic structural response and energy absorption, emphasizing the interaction between material behavior and the structural response Provides a comprehensive description of the phenomenon of impact of structures, containing both fundamental issues of wave propagation and constitutive relation of materials, and the dynamic response of structures under impact loads Based on the authors’ research and teaching experience as well as updated developments in the field Introduction to Impact Dynamics is the perfect textbook for graduate and postgraduate students, and will work as a reference for engineers in the fields of solid mechanics, automotive design, aerospace, mechanical, nuclear, marine, and defense.
Olaf Wandel Robot Control using an Artificial Neural Network Olaf Wandel Robot Control using an Artificial Neural Network Новинка

Olaf Wandel Robot Control using an Artificial Neural Network

Inhaltsangabe:Abstract: The aim of the project was to control three joints of an industrial robot in terms of its position, velocity and acceleration. The work considered the necessary hardware, principles of neural networks and controlling techniques. The hardware comprised of a robot with three DC-motors and three optical position encoders, a personal computer with a D/A card for voltage output to the robot and two D/D cards. One D/D card for receiving values from the optical encoders and one for timing. The basics of artificial neural network type perceptrons were described. The special features bias, output feedback, momentum term, adjustment of momentum factor and adjustment of learning rate for this artificial neural network type were considered. An introduction to learning and control structures using artificial neural networks were given. These were controller copying, direct modelling, direct inverse modelling, control with a model and an inverse model, forward and inverse modelling, control action feedback error learning, feedback error learning, learning and control using the plant’s Jacobian. The conversion of two learning and control structures, direct inverse modelling and control action feedback error learning, was implemented in software using „MS QuickBASIC 4.5“. One joint was controlled with a direct inverse model. One joint and all joints together were controlled with control action feedback error learning. The results of experiments with these learning and...
John Valasek Morphing Aerospace Vehicles and Structures John Valasek Morphing Aerospace Vehicles and Structures Новинка

John Valasek Morphing Aerospace Vehicles and Structures

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Morphing Aerospace Vehicles and Structures provides a highly timely presentation of the state-of-the-art, future directions and technical requirements of morphing aircraft. Divided into three sections it addresses morphing aircraft, bio-inspiration, and smart structures with specific focus on the flight control, aerodynamics, bio-mechanics, materials, and structures of these vehicles as well as power requirements and the use of advanced piezo materials and smart actuators. The tutorial approach adopted by the contributors, including underlying concepts and mathematical formulations, unifies the methodologies and tools required to provide practicing engineers and applied researchers with the insight to synthesize morphing air vehicles and morphing structures, as well as offering direction for future research.
Yadira Jovita Velasco Torres Deteccion de Subpoblaciones de Celulas T Reguladoras en Ratas Desnutridas durante la Lactancia Yadira Jovita Velasco Torres Deteccion de Subpoblaciones de Celulas T Reguladoras en Ratas Desnutridas durante la Lactancia Новинка

Yadira Jovita Velasco Torres Deteccion de Subpoblaciones de Celulas T Reguladoras en Ratas Desnutridas durante la Lactancia

Tesis de Maestría del año 2014 en eltema Biología - Patologías, salud, nutrición, Universidad Autónoma Metropolitana, Idioma: Español, Resumen: Malnutrition is a complex process that affects the entire body not just for weight loss but also for alterations that originate from the immune system (IS). The main function of IS is to defend our bodies against aggressions external. It has been shown that different types of cell have the ability to regulate immune response, one of the populations of T-cell help us contribute to this balance and establish control of the immune response are regulatory T cells (Treg). During infection by pathogens these cells reduce the magnitude of effector response, which limits the immune and therefore infection control response. Treg are a particular group of lymphocytes CD4+, which play a fundamental role in the maintenance of tolerance to antigens themselves, avoid the occurrence of autoimmune diseases, control the development of an excessive immune response to pathogens or against different allergens. It has been shown that Treg cells isolated from peripheral blood, suppress the proliferation and cytokine production by native T cells in vitro and memory. There are several studies that support the effect of malnutrition on immune function, even the possible mechanisms by which malnourished bodies show an inefficient immune response to infections has not been determined with clarity. As we consider essential to assess the proportion of Treg cells ...
Andrew Case The Art of Memory Forensics. Detecting Malware and Threats in Windows, Linux, and Mac Memory Andrew Case The Art of Memory Forensics. Detecting Malware and Threats in Windows, Linux, and Mac Memory Новинка

Andrew Case The Art of Memory Forensics. Detecting Malware and Threats in Windows, Linux, and Mac Memory

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Memory forensics provides cutting edge technology to help investigate digital attacks Memory forensics is the art of analyzing computer memory (RAM) to solve digital crimes. As a follow-up to the best seller Malware Analyst's Cookbook, experts in the fields of malware, security, and digital forensics bring you a step-by-step guide to memory forensics—now the most sought after skill in the digital forensics and incident response fields. Beginning with introductory concepts and moving toward the advanced, The Art of Memory Forensics: Detecting Malware and Threats in Windows, Linux, and Mac Memory is based on a five day training course that the authors have presented to hundreds of students. It is the only book on the market that focuses exclusively on memory forensics and how to deploy such techniques properly. Discover memory forensics techniques: How volatile memory analysis improves digital investigations Proper investigative steps for detecting stealth malware and advanced threats How to use free, open source tools for conducting thorough memory forensics Ways to acquire memory from suspect systems in a forensically sound manner The next era of malware and security breaches are more sophisticated and targeted, and the volatile memory of a computer is often overlooked or destroyed as part of the incident response process. The Art of Memory Forensics explains the latest technological innovations in digital forensics to help bridge this gap. It covers the most popular and recently released versions of Windows, Linux, and Mac, including both the 32 and 64-bit editions.
The Chemical Brothers The Chemical Brothers. Surrender The Chemical Brothers The Chemical Brothers. Surrender Новинка

The Chemical Brothers The Chemical Brothers. Surrender

Music: Response; Under The Influence; Out of Control
J. Knowles Brian Nuclear Electric Power. Safety, Operation, and Control Aspects J. Knowles Brian Nuclear Electric Power. Safety, Operation, and Control Aspects Новинка

J. Knowles Brian Nuclear Electric Power. Safety, Operation, and Control Aspects

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Assesses the engineering of renewable sources for commercial power generation and discusses the safety, operation, and control aspects of nuclear electric power From an expert who advised the European Commission and UK government in the aftermath of Three Mile Island and Chernobyl comes a book that contains experienced engineering assessments of the options for replacing the existing, aged, fossil-fired power stations with renewable, gas-fired, or nuclear plants. From geothermal, solar, and wind to tidal and hydro generation, Nuclear Electric Power: Safety, Operation, and Control Aspects assesses the engineering of renewable sources for commercial power generation and discusses the important aspects of the design, operation, and safety of nuclear stations. Nuclear Electric Power offers: Novel, practical engineering assessments for geothermal, hydro, solar, tidal, and wind generation in terms of the available data on cost, safety, environmental damage, capacity factor reliability, and grid compatibility, with some nuclear comparisons Eigenvalues and real frequency response functions to assess the stabilities of reactor power, two-phase channel flow, and a Grid network A non-linear control strategy with simulation results for a Design Base Accident scenario Original analyses with experimental validation of molten fuel coolant interactions and aircraft impacts on rigid structures Analysis of the circumstances that led to the Fukushima disaster Nuclear Electric Power is an important book for all international nuclear power agencies and those who work within the field.
Igudisman Oleg, Abramovich Haim Strength, Buckling and Oscillations of Aircraft Structures Igudisman Oleg, Abramovich Haim Strength, Buckling and Oscillations of Aircraft Structures Новинка

Igudisman Oleg, Abramovich Haim Strength, Buckling and Oscillations of Aircraft Structures

In work aircraft thin-walled structures: panels, shells supported stringers are considered. Structures are made both from isotropic and of composite multilayered materials. Critical for thin-walled structures are compress loadings of buckling and also the post buckling loadings leading to structural failure In work the main emphasis is put on search of the critical loading and the corresponding forms of the deformed structures. Instruments of research are as variation-analytical methods and numerical finite element method by Nastran Code. Important dynamic characteristics of aircraft structures are the natural frequencies and forms of free and forced vibrations. The work is represented these values of the first frequencies and the corresponding mode shapes. The received results are compared with natural tests performed of Aircraft Structures Laboratory of Aerospace Engineering Faculty of Israel Institute of Technology, Haifa city
Yanghua Wang Seismic Inversion. Theory and Applications Yanghua Wang Seismic Inversion. Theory and Applications Новинка

Yanghua Wang Seismic Inversion. Theory and Applications

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Seismic inversion aims to reconstruct a quantitative model of the Earth subsurface, by solving an inverse problem based on seismic measurements. There are at least three fundamental issues to be solved simultaneously: non-linearity, non-uniqueness, and instability. This book covers the basic theory and techniques used in seismic inversion, corresponding to these three issues, emphasising the physical interpretation of theoretical concepts and practical solutions. This book is written for master and doctoral students who need to understand the mathematical tools and the engineering aspects of the inverse problem needed to obtain geophysically meaningful solutions. Building on the basic theory of linear inverse problems, the methodologies of seismic inversion are explained in detail, including ray-impedance inversion and waveform tomography etc. The application methodologies are categorised into convolutional and wave-equation based groups. This systematic presentation simplifies the subject and enables an in-depth understanding of seismic inversion. This book also provides a practical guide to reservoir geophysicists who are attempting quantitative reservoir characterisation based on seismic data. Philosophically, the seismic inverse problem allows for a range of possible solutions, but the techniques described herein enable geophysicists to exclude models that cannot satisfy the available data. This book summarises the author’s extensive experience in both industry and academia and includes innovative techniques not previously published.
Waser Rainer Resistive Switching. From Fundamentals of Nanoionic Redox Processes to Memristive Device Applications Waser Rainer Resistive Switching. From Fundamentals of Nanoionic Redox Processes to Memristive Device Applications Новинка

Waser Rainer Resistive Switching. From Fundamentals of Nanoionic Redox Processes to Memristive Device Applications

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With its comprehensive coverage, this reference introduces readers to the wide topic of resistance switching, providing the knowledge, tools, and methods needed to understand, characterize and apply resistive switching memories. Starting with those materials that display resistive switching behavior, the book explains the basics of resistive switching as well as switching mechanisms and models. An in-depth discussion of memory reliability is followed by chapters on memory cell structures and architectures, while a section on logic gates rounds off the text. An invaluable self-contained book for materials scientists, electrical engineers and physicists dealing with memory research and development.
Mohammed AlAqil Evaluating the Impact of Conductor Vibrations on Overhead Line Structures Mohammed AlAqil Evaluating the Impact of Conductor Vibrations on Overhead Line Structures Новинка

Mohammed AlAqil Evaluating the Impact of Conductor Vibrations on Overhead Line Structures

Master's Thesis from the year 2015 in the subject Engineering - Power Engineering, grade: Merit, University of Manchester, course: Electrical Power Systems Engineering, language: English, abstract: This dissertation introduces wind-induced vibrations that influence the performance of overhead line structures. The main focus in this study is on Aeolian vibrations and the quantities related to the calculations of its performance such as safe design tension and fatigue limits. However, there are three main methods that are proposed to evaluate conductors with respect to vibrations which are Safe Design Tension Method, Fatigue Endurance Limits Method, and Energy Balance Method. The safe design tension method is applied on Aluminium Composite Steel Reinforced (ACSR) and All Aluminium Alloy Composite (AAAC). Eventually, a relationship is established between tension of conductor and span length. The fatigue endurance limits method uses bending strain and stress to evaluate the fatigue level on the conductor. The effect of vibration dampers to overcome vibration problems on overhead line conductors is also considered. Moreover, an assessment tool based on Microsoft EXCEL is developed which allows the evaluation of overhead line system conductors based on environmental conditions, mechanical properties, and system specifications. The assessment tool evaluates the overhead line system with respect to bending amplitude or alternatively using the antinode amplitude. The analysis of f...
George a. Miller, Eugene Galanter, Karl H. Pribram Plans and the Structure of Behavior George a. Miller, Eugene Galanter, Karl H. Pribram Plans and the Structure of Behavior Новинка

George a. Miller, Eugene Galanter, Karl H. Pribram Plans and the Structure of Behavior

2013 Reprint of 1960 Edition. Full facsimile of the original edition, not reproduced with Optical Recognition Software. By 1960, psychology had come to be dominated by behaviorism and learning theory, which emphasized the observable stimulus and response components of human and animal behavior while ignoring the cognitive processes that mediate the relationship between the stimulus and response. The cognitive phenomena occurring within the "black box" between stimulus and response were of little interest to behaviorists, as their mathematical models worked without them. In 1960, the book "Plans and the Structure of Behavior," authored by George A. Miller, Eugene Galanter, and Karl H. Pribram, was published. In this volume, Miller and his colleagues sought to unify the behaviorists' learning theory with a cognitive model of learned behavior. Whereas the behaviorists suggested that a simple reflex arc underlies the acquisition of the stimulus-response relationship, Miller and his colleagues proposed that "some mediating organization of experience is necessary" somewhere between the stimulus and response, in effect a cognitive process which must include monitoring devices that control the acquisition of the stimulus-response relationship. They named this fundamental unit of behavior the T.O.T.E. for "Test - Operate - Test - Exit".
Haitham Abu-Rub Variable Speed AC Drives with Inverter Output Filters Haitham Abu-Rub Variable Speed AC Drives with Inverter Output Filters Новинка

Haitham Abu-Rub Variable Speed AC Drives with Inverter Output Filters

8476.81 руб. или Купить в рассрочку!
The advance of variable speed drives systems (VSDs) engineering highlights the need of specific technical guidance provision by electrical machines and drives manufacturers, so that such applications can be properly designed to present advantages in terms of both energy efficiency and expenditure. This book presents problems and solutions related to inverter-fed electrical motors. Practically orientated, the book describes the reasons, theory and analysis of those problems. Various solutions for individual problems are presented together with the complete design process, modelling and simulation examples with MATLAB/Simulink on the companion website. A key focus of Variable Speed AC Drives with Inverter Output Filters is to examine the state variables estimation and motor control structures which have to be modified according to the used solution (filter). In most control systems the structure and parameters are taken into account to make it possible for precise control of the motor. This methodology is able to include modifications and extensions depending on specific control and estimation structures. Highly accessible, this is an invaluable resource for practising R&D engineers in drive companies, power electronics & control engineers and manufacturers of electrical drives. Senior undergraduate and postgraduate students in electronics and control engineering will also find it of value.
Bikram Jit Singh RSM. A Key to Optimize Machining: Multi-Response Optimization of CNC Turning with Al-7020 Alloy Bikram Jit Singh RSM. A Key to Optimize Machining: Multi-Response Optimization of CNC Turning with Al-7020 Alloy Новинка

Bikram Jit Singh RSM. A Key to Optimize Machining: Multi-Response Optimization of CNC Turning with Al-7020 Alloy

Parametric optimization, especially in machining of non-ferrous alloys seems to be quite rare and needs an immediate attention because of its associated downstream financial and non-financial losses. This book tries to fill the gap and presents an optimization problem of commonly used Al-7020 Alloy. Principles of Response Surface Methodology (RSM) have been implemented through Minitab software to bring necessary multi-response optimization, while turning on a CNC turner. The present study focuses on to enhance Material Removal Rate (MRR) while simultaneously reducing the Surface Roughness (Ra), during turning of Al-alloy. Such opposite natured response optimization is much difficult to achieve, particularly when uncoated carbide tip has been used as a cutting tool. Intensive literature survey helps to pin point parameters like; Cutting Speed, Feed Rate and Depth of Cut as a most critical to machining parameters, as far as effective and efficient optimization of selected responses are concerned. All these control-parameters are directly or inversely related to each other. If the depth of cut is increased MRR increases at the same time we get poor surface finish. Increase in the cutting speed has positive impact on both material removal rate and surface finish. Shortlisted parameters are conflicting, so we have to optimize these for further enhancement of the overall turning performance. At last, the optimized results are verified by using ANOVA as a statistical tool. This book...
Kunjumon I Vadakkan Semblance of activity at the shared postsynapses and extracellular matrices. A structure-function hypothesis of memory Kunjumon I Vadakkan Semblance of activity at the shared postsynapses and extracellular matrices. A structure-function hypothesis of memory Новинка

Kunjumon I Vadakkan Semblance of activity at the shared postsynapses and extracellular matrices. A structure-function hypothesis of memory

Semblance Hypothesis is a structure-function hypothesis that explains a possible way of brain function. Based on a definition of memory, the author hypothesize certain structural patterns of the dendritic spines, shows evidence for these structures from the literature and use inductive reasoning for their role in explaining memory and other brain functions.
A. Sattar Ahmed Leaks and Blockages in Pipelines A. Sattar Ahmed Leaks and Blockages in Pipelines Новинка

A. Sattar Ahmed Leaks and Blockages in Pipelines

A new technique is developed utilizing the system pressure frequency response to locate and quantify leaks and blockages. The pressure frequency response is calculated at the downstream valve by the transfer matrix method. It is found that the presence of leaks and blockages alters the shape of the system pressure frequency response, the amplitude of pressure oscillations at even harmonics is increased and the amplitude at the odd harmonics is decreased. The increase in amplitude at the even harmonics is used to detect the location of leaks or blockages based on the leak and blockage frequency. For a simple pipeline, the technique successfully detected blockages up to 30% in size and leaks up to 2% of the mean discharge. Moreover, the computed results are verified by comparing with experimental measurements and those obtained by using the method of characteristics.
Christos Kassapoglou Modeling the Effect of Damage in Composite Structures. Simplified Approaches Christos Kassapoglou Modeling the Effect of Damage in Composite Structures. Simplified Approaches Новинка

Christos Kassapoglou Modeling the Effect of Damage in Composite Structures. Simplified Approaches

9135.54 руб. или Купить в рассрочку!
Comprehensively covers new and existing methods for the design and analysis of composites structures with damage present Provides efficient and accurate approaches for analysing structures with holes and impact damage Introduces a new methodology for fatigue analysis of composites Provides design guidelines, and step by step descriptions of how to apply the methods, along with evaluation of their accuracy and applicability Includes problems and exercises Accompanied by a website hosting lecture slides and solutions
Matthias Beckh Hyperbolic Structures. Shukhov's Lattice Towers - Forerunners of Modern Lightweight Construction Matthias Beckh Hyperbolic Structures. Shukhov's Lattice Towers - Forerunners of Modern Lightweight Construction Новинка

Matthias Beckh Hyperbolic Structures. Shukhov's Lattice Towers - Forerunners of Modern Lightweight Construction

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Hyperbolic structures analyses the interactions of form with the structural behaviour of hyperbolic lattice towers, and the effects of the various influencing factors were determined with the help of parametric studies and load capacity analyses. This evaluation of Shukhov’s historical calculations and the reconstruction of the design and development process of his water towers shows why the Russian engineer is considered not only a pathfinder for lightweight structures but also a pioneer of parametrised design processes.
Alfredo Boracchini Design and Analysis of Connections in Steel Structures. Fundamentals and Examples Alfredo Boracchini Design and Analysis of Connections in Steel Structures. Fundamentals and Examples Новинка

Alfredo Boracchini Design and Analysis of Connections in Steel Structures. Fundamentals and Examples

The book introduces all the aspects needed for the safe and economic design and analysis of connections using bolted joints in steel structures. This is not treated according to any specific standard but making comparison among the different norms and methodologies used in the engineering practice, e.g. Eurocode, AISC, DIN, BS. Several examples are solved and illustrated in detail, giving the reader all the tools necessary to tackle also complex connection design problems. The book is introductory but also very helpful to advanced and specialist audiences because it covers a large variety of practice demands for connection design. Parts that are not taken to an advanced level are seismic design, welds, interaction with other materials (concrete, wood), and cold formed connections.
Michael Church Coherent Flow Structures at Earth's Surface Michael Church Coherent Flow Structures at Earth's Surface Новинка

Michael Church Coherent Flow Structures at Earth's Surface

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An expert review of recent progress in the study of turbulent flows with a focus on recently identified organized structures. This book reviews the recent progress in the study of the turbulent flows that sculpt the Earth’s surface, focusing in particular on the organized structures that have been identified in recent years within turbulent flows. These coherent flow structures can include eddies or vortices at the scale of individual grains, through structures that scale with the flow depth in rivers or estuaries, to the large-scale structure of flows at the morphological or landform scale. These flow structures are of wide interest to the scientific community because they play an important role in fluid dynamics and influence the transport, erosion and deposition of sediment and pollutants in a wide variety of fluid flow environments. Scientific knowledge of these structures has improved greatly over the past 20 years as computational fluid dynamics has come to play an increasing important part in building our understanding of coherent flow structures across a broad range of scales. Chapters comprise a series of major, invited papers and a selection of the most novel, innovative papers presented at the second Coherent Flow Structures Conference held August 3-5, 2011 at Simon Fraser University in Burnaby, British Columbia. Chapters focus on six major themes: Dynamics of coherent flow structures (CFS) in geophysical flows Interaction of turbulent flows, vegetation and ecological habitats Coherent structure of atmospheric flows Numerical modeling of coherent flow structures Turbulence in open channel flows Coherent flow structures, sediment transport and morphological feedbacks.
Calculation of Error Structures in Binary Channels with Memory Calculation of Error Structures in Binary Channels with Memory Новинка

Calculation of Error Structures in Binary Channels with Memory

Universities teaching Communication Technology are certain to benefit from applications of the BSC-M Model, for the first time facilitating the evaluation of transmission procedures and codes. This book is also written for those interested in in development and testing of link control protocols and error protection schemes for communication systems. The content is thereby intended to offer a full set of calculations of error structures occurring within binary channels with memory (BSC-M).For this purpose it is not necessary to measure error structures.The model contains only two parameters, the bundling factor and the bit error rate, whereby the most diverse range of channels can be presented, derived from empirical readings conducted over twenty-three years,It have been verified by different Authors, as well as by measurements over cable and also over maritime radio up to distances of 7,500 km (short-wave).
Oana Cazacu Dynamic Damage and Fragmentation Oana Cazacu Dynamic Damage and Fragmentation Новинка

Oana Cazacu Dynamic Damage and Fragmentation

15286.04 руб. или Купить в рассрочку!
Engineering structures may be subjected to extreme high-rate loading conditions, like those associated with natural disasters (earthquakes, tsunamis, rock falls, etc.) or those of anthropic origin (impacts, fluid–structure interactions, shock wave transmissions, etc.). Characterization and modeling of the mechanical behavior of materials under these environments is important in predicting the response of structures and improving designs. This book gathers contributions by eminent researchers in academia and government research laboratories on the latest advances in the understanding of the dynamic process of damage, cracking and fragmentation. It allows the reader to develop an understanding of the key features of the dynamic mechanical behavior of brittle (e.g. granular and cementitious), heterogeneous (e.g. energetic) and ductile (e.g. metallic) materials.
Salah Khalfallah Structural Analysis 1. Statically Determinate Structures Salah Khalfallah Structural Analysis 1. Statically Determinate Structures Новинка

Salah Khalfallah Structural Analysis 1. Statically Determinate Structures

10612.59 руб. или Купить в рассрочку!
Using a general approach, this book supports the student to enable mastery of the methods of analysis of isostatic and hyperstatic structures. To show the performance of the methods of analysis of the hyperstatic structures, selected beams, gantries and reticular structures are selected and subjected to a comparative study by the different methods of analysis of the hyperstatic structures.
Dieter Wessels Seismic Measurements Of Waves In Seams As A Geophysical Tool In The Extraction Of Raw Materials Dieter Wessels Seismic Measurements Of Waves In Seams As A Geophysical Tool In The Extraction Of Raw Materials Новинка

Dieter Wessels Seismic Measurements Of Waves In Seams As A Geophysical Tool In The Extraction Of Raw Materials

Research Paper (postgraduate) from the year 1990 in the subject Physics - Other, grade: 1,0, Technical University of Clausthal, course: Geophysik, language: English, abstract: With the increasing automation of mining, the underground mining forecourt mining is becoming increasingly important. In order to determine the tectonic content of the apron, a weather-protected measuring system was developed, which detects the position of disturbances by seismic channel waves. There are two methods for mapping: 1. The Through-Transmission Measurement provides information about a fault in the seam 2. The reflection measurement provides information about the situation. A great sense of accuracy can be achieved with combined use of both methods. The analysis of 111 measurements shows that geological conditions made the accuracy of the measurements very good, while in geologically complex structures the location of the disturbance proved to be very difficult. The loss of resolution associated with envelope formation prevents the detection of clutter. To remedy this situation, the reflected Flözwellenzug must be attributed to a needle pulse. Theoretical investigations confirm this approach. Since flute waves are subject to absorption - the higher the frequency, the stronger the absorption - and the loss of energy in reflection occurs, research in this area still needs to be done in order to use the insights gained in data processing. Remedies cause a spatial distribution of energy and thus ...
Annabattula Jawahar, Yelamanchi Dharmesh, Tiruvaipati Srinivas Sirish Transient Performance of Capacitive Voltage Transformers Annabattula Jawahar, Yelamanchi Dharmesh, Tiruvaipati Srinivas Sirish Transient Performance of Capacitive Voltage Transformers Новинка

Annabattula Jawahar, Yelamanchi Dharmesh, Tiruvaipati Srinivas Sirish Transient Performance of Capacitive Voltage Transformers

The transient response of the voltage on the secondary is investigated with following changes in the model. Two instants of switching are considered. Instrument transformers are the integral components of power systems .Capacitive Voltage Transformers (CVTs) are widely used for protection, metering and control applications. The work presents the modeling of CVT by its equivalent circuit. A 420kV CVT is considered with a line to ground fault on the primary side. Another kind of transient response called ferro resonance is also studied. Three types of ferro resonance suppression circuits (FSCs) are considered to dampen the behavior due to ferro resonance The parameters of these FSCs are discussed. The impedance, power characteristics of these FSCs with variation of frequency are studied. Furthermore, using metal oxide varistors are used to improve the performance of the FSCs.The two switching instants in presence of FSC are also evaluated .The effect of FSCs on the transient response of CVTs are presented in this work. The effect of magnetizing current of intermediate voltage transformer on the transient response is also simulated.
Отсутствует Design of Cold-formed Steel Structures. Eurocode 3: Design of Steel Structures. Part 1-3 Design of cold-formed Steel Structures Отсутствует Design of Cold-formed Steel Structures. Eurocode 3: Design of Steel Structures. Part 1-3 Design of cold-formed Steel Structures Новинка

Отсутствует Design of Cold-formed Steel Structures. Eurocode 3: Design of Steel Structures. Part 1-3 Design of cold-formed Steel Structures

7332.33 руб. или Купить в рассрочку!
The book is concerned with design of cold-formed steel structures in building based on the Eurocode 3 package, particularly on EN 1993-1-3. It contains the essentials of theoretical background and design rules for cold-formed steel sections and sheeting, members and connections for building applications. Elaborated examples and design applications – more than 200 pages – are included in the respective chapters in order to provide a better understanding to the reader.
Ivan Lukacevic Composite Structures according to Eurocode 4. Worked Examples Ivan Lukacevic Composite Structures according to Eurocode 4. Worked Examples Новинка

Ivan Lukacevic Composite Structures according to Eurocode 4. Worked Examples

8754.89 руб. или Купить в рассрочку!
The use of composite structures in construction is increasing. The optimized combination of the two materials concrete and steel produces particularly cost-efficient structures. This book presents a large number of numerical examples with detailed explanations of the provisions of Eurocode 4. It deals with the most common structural components in building construction: beams, columns and slabs. Furthermore, comprehensive chapters provide insight into the topics of creep and shrinkage, as well as fatigue. This book enables the reader to efficiently perform analyses of composite structures. It is a valuable reference book for professionals as well as an outstanding means for students to become familiar with the Eurocode 4.
Salah Khalfallah Structural Analysis 2. Statically Indeterminate Structures Salah Khalfallah Structural Analysis 2. Statically Indeterminate Structures Новинка

Salah Khalfallah Structural Analysis 2. Statically Indeterminate Structures

15286.04 руб. или Купить в рассрочку!
This book enables the student to master the methods of analysis of isostatic and hyperstatic structures. To show the performance of the methods of analysis of the hyperstatic structures, some beams, gantries and reticular structures are selected and subjected to a comparative study by the different methods of analysis of the hyperstatic structures. This procedure provides an insight into the methods of analysis of the structures.
Emil Simiu Wind Effects on Structures. Modern Structural Design for Wind Emil Simiu Wind Effects on Structures. Modern Structural Design for Wind Новинка

Emil Simiu Wind Effects on Structures. Modern Structural Design for Wind

12506.76 руб. или Купить в рассрочку!
Provides structural engineers with the knowledge and practical tools needed to perform structural designs for wind that incorporate major technological, conceptual, analytical and computational advances achieved in the last two decades. With clear explanations and documentation of the concepts, methods, algorithms, and software available for accounting for wind loads in structural design, it also describes the wind engineer's contributions in sufficient detail that they can be effectively scrutinized by the structural engineer in charge of the design. Wind Effects on Structures: Modern Structural Design for Wind, 4th Edition is organized in four sections. The first covers atmospheric flows, extreme wind speeds, and bluff body aerodynamics. The second examines the design of buildings, and includes chapters on aerodynamic loads; dynamic and effective wind-induced loads; wind effects with specified MRIs; low-rise buildings; tall buildings; and more. The third part is devoted to aeroelastic effects, and covers both fundamentals and applications. The last part considers other structures and special topics such as trussed frameworks; offshore structures; and tornado effects. Offering readers the knowledge and practical tools needed to develop structural designs for wind loadings, this book: Points out significant limitations in the design of buildings based on such techniques as the high-frequency force balance Discusses powerful algorithms, tools, and software needed for the effective design for wind, and provides numerous examples of application Discusses techniques applicable to structures other than buildings, including stacks and suspended-span bridges Features several appendices on Elements of Probability and Statistics; Peaks-over-Threshold Poisson-Process Procedure for Estimating Peaks; estimates of the WTC Towers’ Response to Wind and their shortcomings; and more Wind Effects on Structures: Modern Structural Design for Wind, 4th Edition is an excellent text for structural engineers, wind engineers, and structural engineering students and faculty.
Wayne Durham Aircraft Flight Dynamics and Control Wayne Durham Aircraft Flight Dynamics and Control Новинка

Wayne Durham Aircraft Flight Dynamics and Control

9745.15 руб. или Купить в рассрочку!
Aircraft Flight Dynamics and Control addresses airplane flight dynamics and control in a largely classical manner, but with references to modern treatment throughout. Classical feedback control methods are illustrated with relevant examples, and current trends in control are presented by introductions to dynamic inversion and control allocation. This book covers the physical and mathematical fundamentals of aircraft flight dynamics as well as more advanced theory enabling a better insight into nonlinear dynamics. This leads to a useful introduction to automatic flight control and stability augmentation systems with discussion of the theory behind their design, and the limitations of the systems. The author provides a rigorous development of theory and derivations and illustrates the equations of motion in both scalar and matrix notation. Key features: Classical development and modern treatment of flight dynamics and control Detailed and rigorous exposition and examples, with illustrations Presentation of important trends in modern flight control systems Accessible introduction to control allocation based on the author's seminal work in the field Development of sensitivity analysis to determine the influential states in an airplane's response modes End of chapter problems with solutions available on an accompanying website Written by an author with experience as an engineering test pilot as well as a university professor, Aircraft Flight Dynamics and Control provides the reader with a systematic development of the insights and tools necessary for further work in related fields of flight dynamics and control. It is an ideal course textbook and is also a valuable reference for many of the necessary basic formulations of the math and science underlying flight dynamics and control.
Kefei Li Durability Design of Concrete Structures. Phenomena, Modeling, and Practice Kefei Li Durability Design of Concrete Structures. Phenomena, Modeling, and Practice Новинка

Kefei Li Durability Design of Concrete Structures. Phenomena, Modeling, and Practice

10278.2 руб. или Купить в рассрочку!
Comprehensive coverage of durability of concrete at both material and structural levels, with design related issues Links two active fields in materials science and structural engineering: the durability processes of concrete materials and design methods of concrete structures Facilitates communication between the two communities, helping to implement life-cycle concepts into future design methods of concrete structures Presents state-of-the-art information on the deterioration mechanism and performance evolution of structural concrete under environmental actions and the design methods for durability of concrete structures Provides efficient support and practical tools for life-cycle oriented structural design which has been widely recognized as a new generation of design philosophy for engineering structures The author has long experience working with the topic and the materials presented have been part of the author's current teaching course of Durability and Assessment of Engineering Structures for graduate students at Tsinghua University The design methods and approaches for durability of concrete structures are developed from newly finished high level research projects and have been employed as recommended provisions in design code including Chinese Code and Eurocode 2
Peter Marti Theory of Structures. Fundamentals, Framed Structures, Plates and Shells Peter Marti Theory of Structures. Fundamentals, Framed Structures, Plates and Shells Новинка

Peter Marti Theory of Structures. Fundamentals, Framed Structures, Plates and Shells

2157.25 руб. или Купить в рассрочку!
This book provides the reader with a consistent approach to theory of structures on the basis of applied mechanics. It covers framed structures as well as plates and shells using elastic and plastic theory, and emphasizes the historical background and the relationship to practical engineering activities. This is the first comprehensive treatment of the school of structures that has evolved at the Swiss Federal Institute of Technology in Zurich over the last 50 years. The many worked examples and exercises make this a textbook ideal for in-depth studies. Each chapter concludes with a summary that highlights the most important aspects in concise form. Specialist terms are defined in the appendix. There is an extensive index befitting such a work of reference. The structure of the content and highlighting in the text make the book easy to use. The notation, properties of materials and geometrical properties of sections plus brief outlines of matrix algebra, tensor calculus and calculus of variations can be found in the appendices. This publication should be regarded as a key work of reference for students, teaching staff and practising engineers. Its purpose is to show readers how to model and handle structures appropriately, to support them in designing and checking the structures within their sphere of responsibility.
Christian Lexcellent Shape-Memory Alloys Handbook Christian Lexcellent Shape-Memory Alloys Handbook Новинка

Christian Lexcellent Shape-Memory Alloys Handbook

14050.81 руб. или Купить в рассрочку!
The aim of this book is to understand and describe the martensitic phase transformation and the process of martensite platelet reorientation. These two key elements enable the author to introduce the main features associated with the behavior of shape-memory alloys (SMAs), i.e. the one-way shape-memory effect, pseudo-elasticity, training and recovery. Attention is paid in particular to the thermodynamical frame for solid materials modeling at the macroscopic scale and its applications, as well as to the particular use of such alloys – the simplified calculations for the bending of bars and their torsion. Other chapters are devoted to key topics such as the use of the “crystallographical theory of martensite” for SMA modeling, phenomenological and statistical investigations of SMAs, magneto-thermo-mechanical behavior of magnetic SMAs and the fracture mechanics of SMAs. Case studies are provided on the dimensioning of SMA elements offering the reader an additional useful framework on the subject. Contents 1. Some General Points about SMAs. 2. The World of Shape-memory Alloys. 3. Martensitic Transformation. 4. Thermodynamic Framework for the Modeling of Solid Materials. 5. Use of the “CTM” to Model SMAs. 6. Phenomenological and Statistical Approaches for SMAs. 7. Macroscopic Models with Internal Variables. 8. Design of SMA Elements: Case Studies. 9. Behavior of Magnetic SMAs. 10. Fracture Mechanics of SMAs. 11. General Conclusion. Appendix 1. Intrinsic Properties of Rotation Matrices. Appendix 2. “Twinning Equation” Demonstration. Appendix 3. Calculation of the Parameters a, n and Q from the “Twinning” Equation. Appendix 4. “Twinned” Austenite/Martensite Equation. About the Authors Christian Lexcellent is Emeritus Professor at the École National Supérieure de Mécanique et des Microtechniques de Besançon and a researcher in the Department of Applied Mechanics at FEMTO-ST in France. He is a specialist in the mechanics of materials and phase transition and has taught in the subjects of mechanics of continuum media and shape memory alloys. He is also a member of the International Committee of ESOMAT.
Bineshian Hossein Stress Non-uniformity Bineshian Hossein Stress Non-uniformity Новинка

Bineshian Hossein Stress Non-uniformity

The mechanical response of concrete/rocks to tension and compression with a special consideration to the effect of bending moment on failure mechanisms is examined in this book. A new technique in strain measurement is developed with application in monitoring of the stability and deformation of underground and surface structures in civil, oil & gas, and mining industries as a substitute for geotechnical/geomechanical instrumentations for practical projects such as tunnels, shafts, caverns, slopes, roads, concrete dams, embankments, boreholes, wells, mine stopes, and open pits. The analytical approach based on the mathematical function of Bineshian strength/failure criterion (2000) led to the development of a new failure criterion, which considers the bending moment generated during compression providing linear and nonlinear envelopes capable of describing most compression and tension test data. New Concrete Damage Plasticity (CDP) constitutive model parameters are also developed that are applicable to numerical modelling of failure and post-failure response of concrete and rock structures. Empirical Concrete Quality Designation (CQD) is also introduced in this book.
Yunus Mushaga Seismic Performance of Elevators in Hoist Ways Yunus Mushaga Seismic Performance of Elevators in Hoist Ways Новинка

Yunus Mushaga Seismic Performance of Elevators in Hoist Ways

Elevators comprise components prone to earthquakes which should be protected against failures. Elevators installed in and around the Great Rift Valley are subjected to seismic effects. Dynamic Performance of elevators depends mainly on the contact between the guide rails and sliding shoes. Only few studies had been conducted to improve it. This book discusses seismic performance of elevators based on rail-slide shoe-counterweight connections. Lumped parameter dynamic and analytic models are generated for possible causes of nonlinearities; then equations of motions are formulated. To verify the analysis, a case study is conducted based on an elevator installed in Bole area that lies in zone-3 of the seismic map of Addis Ababa. The problem is analyzed with EBCS code and the PSD. It is found that EBCS code is inept to handle random vibrations like the earthquake motion and a code revision is suggested. Moreover, elevators constructed in Ethiopia found not to resist seismic motions larger than 0.1g.

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Fundamentals of Earthquake Engineering: From Source to Fragility, Second Edition combines aspects of engineering seismology, structural and geotechnical earthquake engineering to assemble the vital components required for a deep understanding of response of structures to earthquake ground motion, from the seismic source to the evaluation of actions and deformation required for design, and culminating with probabilistic fragility analysis that applies to individual as well as groups of buildings. Basic concepts for accounting for the effects of soil-structure interaction effects in seismic design and assessment are also provided in this second edition. The nature of earthquake risk assessment is inherently multi-disciplinary. Whereas this book addresses only structural safety assessment and design, the problem is cast in its appropriate context by relating structural damage states to societal consequences and expectations, through the fundamental response quantities of stiffness, strength and ductility. This new edition includes material on the nature of earthquake sources and mechanisms, various methods for the characterization of earthquake input motion, effects of soil-structure interaction, damage observed in reconnaissance missions, modeling of structures for the purposes of response simulation, definition of performance limit states, fragility relationships derivation, features and effects of underlying soil, structural and architectural systems for optimal seismic response, and action and deformation quantities suitable for design. Key features: Unified and novel approach: from source to fragility Clear conceptual framework for structural response analysis, earthquake input characterization, modelling of soil-structure interaction and derivation of fragility functions Theory and relevant practical applications are merged within each chapter Contains a new chapter on the derivation of fragility Accompanied by a website containing illustrative slides, problems with solutions and worked-through examples Fundamentals of Earthquake Engineering: From Source to Fragility, Second Edition is designed to support graduate teaching and learning, introduce practising structural and geotechnical engineers to earthquake analysis and design problems, as well as being a reference book for further studies.
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