Vibration Control of Active Structures

1. Front Matter

   Pages i-xvii

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2. Introduction

   Pages 1-15

3. Some concepts of structural dynamics

   Pages 17-36

4. Actuators, piezoelectric materials, and active structures

   Pages 37-74

5. Collocated versus non-collocated control

   Pages 75-90

6. Active damping with collocated pairs

   Pages 91-111

7. Active vibration isolation

   Pages 113-136

8. State space approach

   Pages 137-163

9. Analysis and synthesis in the frequency domain

   Pages 165-192

10. Optimal control

    Pages 193-220

11. Controllability and Observability

    Pages 221-243

12. Stability

    Pages 245-262

13. Semi-active control

    Pages 263-276

14. Applications

    Pages 277-320

15. Tendon Control of Cable Structures

    Pages 321-345

16. Back Matter

    Pages 347-366

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My objective in writing this book was to cross the bridge between the structural dynamics and control communities, while providing an overview of the potential of SMART materials for sensing and actuating purposes in active vibration c- trol. I wanted to keep it relatively simple and focused on systems which worked. This resulted in the following: (i) I restricted the text to fundamental concepts and left aside most advanced ones (i.e. robust control) whose usefulness had not yet clearly been established for the application at hand. (ii) I promoted the use of collocated actuator/sensor pairs whose potential, I thought, was strongly underestimated by the control community. (iii) I emphasized control laws with guaranteed stability for active damping (the wide-ranging applications of the IFF are particularly impressive). (iv) I tried to explain why an accurate pred- tion of the transmission zeros (usually called anti-resonances by the structural dynamicists) is so important in evaluating the performance of a control system. (v) I emphasized the fact that the open-loop zeros are more difficult to predict than the poles, and that they could be strongly influenced by the model trun- tion (high frequency dynamics) or by local effects (such as membrane strains in piezoelectric shells), especially for nearly collocated distributed actuator/sensor pairs; this effect alone explains many disappointments in active control systems.

• Sensor
• Vibration
• actuator
• design
• optimal control
• shells
• siso system
• stability
• structural dynamics
• transfer function

"This is a very useful book for graduate students, researchers and professionals interested in strucutrasl control. I highly recommend it."
(AIAA Journal, 41:3)

• Université Libre de Bruxelles, Brussels, Belgium

  André Preumont

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