Adaptive Structural Systems with Piezoelectric Transducer Circuitry (eBook)

Preface 5
ACKNOWLEDGMENTS 6
1 Background and Introduction 11
1.1 ACTIVE-PASSIVE MODAL DAMPING AUGMENTATION 14
1.2 ADAPTIVE NARROW BAND DISTURBANCE REJECTION 15
1.3 HIGH-PRECISION CONTROL WITH HYSTERESIS COMPENSATION 17
1.4 VIBRATION CONFINEMENT AND ISOLATION 18
1.5 VIBRATION DELOCALIZATION AND CONTROL IN PERIODIC STRUCTURES 20
1.6 STRUCTRUAL DAMAGE IDENTIFICATION ENHANCEMENT 22
1.7 SUMMARY 24
2 Open-Loop Comparison and Enhancement of Active-Passive Piezoelectric Circuitry 26
2.1 PROBLEM STATEMENT AND OBJECTIVE 27
2.2 OPEN-LOOP COMPARISON OF ACTIVE-PASSIVE PIEZOELECTRIC CIRCUITRY 28
2.3 ENHANCING OPEN-LOOP PERFORMANCE USING NEGATIVE CAPACITANCE 39
2.4 CONCLUDING REMARKS 47
APPENDIX 2.1 BEAM STRUCTURE INTEGRATED WITH ACTIVE-PASSIVE HYBRID PIEZOELECTRIC CIRCUITRY: EQUATIONS OF MOTION 48
APPENDIX 2.2 OPTIMAL TUNINGS FOR PASSIVE DAMPING 51
3 Closed-Loop Synthesis for Active-Passive Structural Modal Control and Damping 55
3.1 PROBLEM STATEMENT AND OBJECTIVE 56
3.2 SYSTEM MODEL 56
3.3 OPEN-LOOP SYSTEM ANALYSIS of APPN 62
3.4 ACTIVE-PASSIVE CONTROL SYNTHESIS 67
3.5 ANALYSIS OF THE OPTIMIZED CLOSED-LOOP SYSTEM 70
3.6 CONCLUDING REMARKS 78
APPENDIX 3.1 AN ALTERNATIVE METHOD FOR OPTIMAL PASSIVE TUNING 78
4 Active-Passive Adaptive Design for Frequency- Varying Narrowband Disturbance Rejection 81
4.1 PROBLEM STATEMENT AND OBJECTIVE 82
4.2 ACTIVE INDUCTANCE AND RESISTANCE TUNING 83
4.4 STABILITY ANALYSIS 96
4.5 EXPERIMENTAL VALIDATION 99
4.6 COMPARISON STUDIES 105
4.7 EXTENSION TO MULTIPLE-FREQUENCY EXCITATION – BASIC IDEA 115
4.8 OPTIMAL TUNING FOR MULTI-FREQUENCY EXCITATION 118
4.9 STABILITY ANALYSIS FOR MULTI-FREQUENCY DISTURBANCE REJECTION 124
4.10 TRANSIENT PERFORMANCE OF MULTIPLE-FREQUENCY DISTURBANCE REJECTION 128
4.11 FURTHER EXTENSION TO THREE OR MORE EXCITATION FREQUENCIES 132
4.12 CONCLUDING REMARKS 132
5 Nonlinear High-Precision Robust Control with Hysteresis Compensation 134
5.1 PROBLEM STATEMENT AND OBJECTIVE 136
5.2 PIEZOELECTRIC HYSTERESIS AND SYSTEM MODELING 137
5.3 INTEGRAL CONTINUOUS SLIDING MODE CONTROL (ICSMC) DESIGN 146
5.4 SIMULATION RESULTS AND DISCUSSIONS 156
5.5 CONCLUDING REMARKS 165
APPENDIX 5.1 CONTINUOUS SLIDING MODE CONTROL (CSMC) DESIGN 165
APPENDIX 5.2 INTEGRAL VARIABLE STRUCTURE CONTROL (IVSC) DESIGN 168
6 Active Vibration Confinement Enhancement 171
6.1 PROBLEM STATEMENT AND OBJECTIVE 173
6.2 BASIC IDEA AND EIGENSTRUCTURE ASSIGNMENT ALGORITHM 174
6.3 SIMULTANEOUS OPTIMIZATION / OPTIMAL EIGENVECTOR ASSIGNMENT FOR ACTIVE-PASSIVE VIBRATION CONTROL 182
6.4 PERIODIC ISOLATOR DESIGN ENHANCEMENT USING VIBRATION CONFINEMENT 194
6.5 CONCLUDING REMARKS 206
7 Delocalization and Suppression of Vibration in Periodic Structures 207
7.1 PROBLEM STATEMENT AND OBJECTIVE 208
7.2 SYSTEM MODEL 210
7.3 LOCALIZATION ANALYSIS 213
7.4 PIEZOELETRIC TRANSDUCER CIRCUITRY NETWORK SYNTHESIS FOR VIBRATION MODE DELOCALIZATION 218
7.5 VIBRATION SUPPRESSION IN PERIODIC STRUCTURES 231
7.6 CONCLUDING REMARKS 248
8 Structural Damage Identification Enhancement 249
8.1 PROBLEM STATEMENT AND OBJECTIVE 250
8.2 DAMAGE IDENTIFICATION USING TUNABLE PIEZOELECTRIC CIRCUITRY 251
8.3 FORMULATION OF FAVORABLE INDUCTANCE TUNING 257
8.4 DAMAGE IDENTIFICATION ANALYSES AND CASE STUDIES 272
8.5 CONCLUDING REMARKS 281
Nomenclature 282
References 287
Copyright Permission Acknowledgment 299
Index 301