Advanced Structural Dynamics And Active Control Of Structures
Preface
Science is for those who learn;
poetry for those who know.
This book is a continuation of my previous book, Dynamics and Control of Structures [44]. The expanded book includes three additional chapters and an additional appendix: Chapter 3, “Special Models”; Chapter 8, “Modal Actuators and Sensors”; and Chapter 9, “System Identification.” Other chapters have been
significantly revised and supplemented with new topics, including discrete-time models of structures, limited-time and -frequency grammians and reduction, almostbalanced
modal
models, simultaneous placement of sensors and actuators, and structural damage detection. The appendices have also been updated and expanded. Appendix A consists of thirteen new Matlab programs. Appendix B is a new addition and includes eleven Matlab programs that solve examples from each
chapter. In Appendix C model data are given.
Several books on structural dynamics and control have been published.
Meirovitch’s textbook [108] covers methods of structural dynamics (virtual work,
d’Alambert’s principle, Hamilton’s principle, Lagrange’s and Hamilton’s equations,
and modal analysis of structures) and control (pole placement methods, LQG design, and modal control). Ewins’s book [33] presents methods of modal testing of
structures. Natke’s book [111] on structural identification also contains excellent material on structural dynamics. Fuller, Elliot, and Nelson [40] cover problems of structural active control and structural acoustic control. Inman’s book [79]
introduces the basic concepts of vibration control, while Preumont in [120] presents
modern approaches to structural control, including LQG controllers, sensors, and actuator placement, and piezoelectric materials with numerous applications in aerospace and civil engineering. The Junkins and Kim book [87] is a graduate-level textbook, while the Porter and Crossley book [119] is one of the first books on modal control. Skelton’s work [125] (although on control of general linear systems)
introduces methods designed specifically for the control of flexible structures. For example, the component cost approach to model or controller reduction is a tool frequently used in this field. The monograph by Joshi [83] presents developments on
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