| 摘要 | 第1-5页 |
| ABSTRACT | 第5-7页 |
| ACKNOWLEDGEMENTS | 第7-12页 |
| LIST OF TABLES | 第12-13页 |
| LIST OF FIGURES | 第13-15页 |
| CHAPTER 1 INTRODUCTION | 第15-29页 |
| ·Background, objective and significance of the thesis | 第15-17页 |
| ·Developmental of Piezoelectric materials and correlated theories | 第17-25页 |
| ·Developmental of Piezoelectric materials | 第17-18页 |
| ·Piezoelectric effects and piezoelectric theory | 第18-19页 |
| ·Piezoelectric function and piezoelectric constants | 第19-22页 |
| ·Piezoelectric material classification | 第22页 |
| ·Piezoelectric material ordinary vibration mode | 第22-25页 |
| ·1-3 piezoelectric material composites | 第25-27页 |
| ·Developmental of 1-3 piezoelectric material composites | 第25-26页 |
| ·Characteristic of 1-3 piezoelectric material composites | 第26-27页 |
| ·Summary | 第27-29页 |
| CHAPTER 2 RESEARCH ON SIMULATED ANNEALING ALGORITHM | 第29-35页 |
| ·Introduction | 第29-30页 |
| ·Composition of Simulated Annealing Algorithm | 第30-32页 |
| ·Function of new solution generated | 第30-31页 |
| ·Function of control parameters | 第31页 |
| ·Criterion of Metropolis | 第31-32页 |
| ·Local and global terminal condition | 第32页 |
| ·Basic flowchart of Simulated Annealing Algorithm | 第32-34页 |
| ·Relative merits of Simulated Annealing Algorithm | 第34页 |
| ·Summary | 第34-35页 |
| CHAPTER 3 CHARACTERIZATION OF HIGH-LOSS PIEZOELECTRIC MATERIAL PARAMETERS | 第35-45页 |
| ·Introduction | 第35-36页 |
| ·Conventional method of piezoelectric material parameters | 第36-38页 |
| ·Complex model of piezoelectric material parameters | 第38-41页 |
| ·Basic theory of model | 第38-40页 |
| ·Establishing of constraint condition | 第40-41页 |
| ·Comparison of theoretical values and experimental results | 第41-44页 |
| ·Sample of experiment | 第41-42页 |
| ·Results and analyzing of experiment | 第42-44页 |
| ·Summary | 第44-45页 |
| CHAPTER 4 COMPLEX MODEL OF 1-3 PIEZOELECTRIC COMPOSITES MATERIALS | 第45-65页 |
| ·Introduction | 第45-46页 |
| ·Theory model of 1-3 piezoelectric composite materials | 第46-48页 |
| ·Establishing of theoretical basis | 第48-50页 |
| ·Definition of piezoelectric phase volume fraction | 第48-49页 |
| ·Definition of piezoelectric phase thickness-width ratio | 第49页 |
| ·Well-distributed theory | 第49-50页 |
| ·Complex parameters model of 1-3 piezoelectric composite materials | 第50-64页 |
| ·Variation of piezoelectric phase vibration with thickness-width ratio | 第52-54页 |
| ·Constitutive relation and piezoelectric functions of piezoelectric | 第54-56页 |
| ·Constitutive relation and piezoelectric functions of polymer phase | 第56-58页 |
| ·Constitutive relation and piezoelectric functions of composite | 第58-64页 |
| ·Summary | 第64-65页 |
| CHAPTER 5 OPTIMIZATION OF 1-3 PIEZOELECTRIC COMPOSITE TRANSDUCER BAND-WIDTHS | 第65-81页 |
| ·Introduction | 第65-66页 |
| ·Experiment samples and parameters | 第66-68页 |
| ·Relationship between volume fraction vc and material parameters | 第68-72页 |
| ·Electromechanical coupling coefficient kt and volume fraction vc | 第68-69页 |
| ·Acoustic impedance Z0 and volume fraction vc | 第69-70页 |
| ·Piezoelectric stress constant e33 and volume fraction vc | 第70-72页 |
| ·Relationship between thickness-width ratio t/w(l) and material parameters | 第72-74页 |
| ·Electromechanical coupling coefficient kt and thickness-width ratio t | 第72-73页 |
| ·Acoustic impedance Z0 and thickness-width ratio t/w(l) | 第73-74页 |
| ·Piezoelectric stress constant e33 and thickness-width ratio t/w(l) | 第74页 |
| ·Response characteristic of composite materials | 第74-79页 |
| ·Characteristic of composite materials conduction-frequency | 第74-76页 |
| ·Characteristic of composite materials mechanical response | 第76-79页 |
| ·Summary | 第79-81页 |
| CHAPTER 6 MAIN CONCLUSIONS AND RESEARCH PLANS | 第81-84页 |
| ·Main conclusions | 第81-82页 |
| ·Innovation points | 第82-83页 |
| ·Research plans | 第83-84页 |
| REFERENCES | 第84-88页 |
| APPENDICES | 第88-89页 |
