Theory of Adaptive Structures provides the basic theory for controlling adaptive structures in static and dynamic environments. It synthesizes well-established theories on modern control as well as statics and dynamics of deformable bodies. Discussions concentrate on the discrete parameter adaptive structures dealing with actuator placement, actuator selection, and actuation computation problems - keeping these structures at close proximity of any chosen nominal state with the least energy consumption. An introduction to the distributed parameter adaptive structures is also provided. The book follows that modern trend in research and industry striving to incorporate intelligence into engineered products through microprocessors that are becoming smaller, faster, and cheaper at astounding rates. Not using them in engineered products may become an enormous liability. Resulting from the advances in materials technology on sensors and actuator technologies as well as the availability of very powerful and reliable microprocessors, there is an ever-increasing interest in actively controlling the behavior of engineering systems. Engineers and engineering scientists must revive and broaden their activities to maximize applications for predicting and controlling the behavior of deformable bodies. Topics include: An introduction to adaptive structures Incremental excitation-response relations in static and dynamic cases Active control of response in static case Statically determinate adaptive structures Statically indeterminate adaptive structures Active vibration control for autonomous and non-autonomous cases Active control against wind Active control against seismic loads Distributed parameter adaptive structures The technology of adaptive structures has created an environment where the analysis, not the computation, of structural response - du
Mechanical Engineering/Materials Science An applications-oriented approach for engineers and advanced students Adaptive Structures covers the key concepts and practical issues involved in translating much of the theory of adaptive structures into successful, real-world hardware. Easily applied to a variety of application physics, the material emphasizes the integration of control strategies, transduction device dynamics, and spatial signal processing through novel sensing methods and actuator configurations (physical or transformed coordinates). The book contains essential models of adaptive structures and components to facilitate design approaches. The accompanying disk features script files, operating under MATLAB, which can be used to generate most of the results presented throughout the book and are invaluable to readers developing their own structural models. Topics include: * Fundamentals of structural dynamics; linear systems and signals; and signal processing and digital filters * The integration of spatial and temporal signal processing techniques * Transduction device dynamics and links between physical, modal, and wave domain models for structural dynamic analysis and control * An overview of classical controls * An application-oriented review of adaptive feedforward control and multivariable feedback control system architectures
Adaptive structures have the ability to adapt, evolve or change their properties or behaviour in response to the environment around them. The analysis and design of adaptive structures requires a highly multi-disciplinary approach which includes elements of structures, materials, dynamics, control, design and inspiration taken from biological systems. Development of adaptive structures has been taking place in a wide range of industrial applications, but is particularly advanced in the aerospace and space technology sector with morphing wings, deployable space structures; piezoelectric devices and vibration control of tall buildings. Bringing together some of the foremost world experts in adaptive structures, this unique text: includes discussions of the application of adaptive structures in the aerospace, military, civil engineering structures, automotive and MEMS. presents the impact of biological inspiration in designing adaptive structures, particularly the use of hierarchy in nature, which typically induces multi-functional behavior. sets the agenda for future research in adaptive structures in one distinctive single volume. Adaptive Structures: Engineering Applications is essential reading for engineers and scientists working in the fields of intelligent materials, structural vibration, control and related smart technologies. It will also be of interest to senior undergraduate and postgraduate research students as well as design engineers working in the aerospace, mechanical, electrical and civil engineering sectors.
Conducted over a 7yr period & spawning many jrnl pub's, this vol. will summarize the many interconnected studies that were conducted, will frame each one in terms of the larger lit, & will emphasize their contrib's to motivational theory & educ. practice
This book focuses on smart materials and structures, which are also referred to as intelligent, adaptive, active, sensory, and metamorphic. The ultimate goal is to develop biologically inspired multifunctional materials with the capability to adapt their structural characteristics, monitor their health condition, perform self-diagnosis and self-repair, morph their shape, and undergo significant controlled motion.
Organizations and Communications Technology is must reading for those interested in the relation of communication technology to organizational form and function. The book does what many such collections do not do: It presents in a complementary--if not totally unified--fashion a variety of perspectives on and answers to questions raised about the essential nature, determinants, and effects of the organization-communication technology interface. Such coherence in theme and structure is not accidental; rather, it derives from the editors′ commitment to a robust theoretical foundation in which to ground past and future research. . . . They have succeeded brilliantly in their efforts to focus substantive scholarship on theory building in a data-rich but theory-poor field. The result is a work that will no doubt be a classic. The reader who makes the commitment to mine its essays will not be disappointed. --Journal of Business and Technical Communication "As a summary of the field, this collection of theoretical essays succeeds on two main counts. . . . First, it brings together in one volume writers whose recent work has been widely cited and discussed throughout the literatures of information science, communication, management, and technology studies. Second, the book presents some exciting theoretical ideas about the relationship between communication technologies and social behavior that are applicable beyond the organizational setting. . . . On the whole, this book is a fine overview that updates and lends structure--′organizes′--this evolving literature for a diverse audience." --Journal of Communication "The editors . . . argue convincingly that the study of human and organizational aspects of communications technology suffers from a glut of data and a deficiency of theory. The objective of the book becomes one of starting the process of developing a corpus of theory that will integrate the knowledge we have. Overall, the book achieves this objective well, with the gratifying addition that there are also plenty of practical recommendations of immediate value to the practitioner. . . . This is an ambitious book and given the importance of the topic this is inevitable. It is aimed at a broad range of disciplines. It is unashamedly theoretical in its approach yet contains a good deal of immediate practical importance. My own prediction . . . suggests that this book will be regarded as a milestone from which future progress will be measured." --The Occupational Psychologist "Communications technology offers a wonderful springboard for much broader considerations of how people in organizations and behavior within them. Worthwhile . . . engaging." --Academy of Management Review "Will interest any business communication scholar concerned with the ways organizations are affected by new technologies. . . . Provide[s] a wealth of stimulating ideas." --Journal of Business Communication "Organizations and Communications Technology is an attempt to provide a foundation for theory development on information technology in organizations by delegating the task to a set of competent researchers and theorists. Given the dearth of theory development in the field such a strategy makes some sense. Because of (its) diversity, organizations, communications, and management information systems scholars should all find something of interest." --Administrative Science Quarterly How do technology and organization interact to shape organizational structures and processes? What organizational, political, and social processes constrain technological development? What forces shape the articulation of organizational and technological systems? Answering these and other pivotal questions, this powerful volume centers on the role of theory for advancing our knowledge of communication technology in organizations at several levels: micro, group, and macro. A distinguished team of contributors examines a richly diverse group of topics, including telecommunications, communication networks and new media, the use of group decision support systems, and discretionary databases, to name but a few. Organizations and Communication Technology offers nothing less than a fresh foundation for research and management practice. As such, it is essential reading for scholars, practitioners, and students in the fields of management studies, communication science, organization studies, and policy studies.
In this textbook, Derek Layder offers a better understanding of the links between theory and research, and provides an analysis of the relationship between the two. He develops clear usable strategies to encourage theory development in the practical context of social research, and introduces a new approach - adaptive theory - which can be used to generate new theory as well as develop existing theory in conjunction with empirical research. Layder concludes by providing an outline of new rules of sociological method that show how adaptive theory can be put into practice.
This book shows readers new ways to compensate for disturbances in control systems prolonging the intervals between time-consuming and/or expensive fault diagnosis procedures, keeping them up to date in the increasingly important field of adaptive control.
