Spiral piezoelectric transducer in torsional motion as low-frequency power harvester  

作　　者：王海仁 胡洪平 杨嘉实 胡元太 

机构地区：[1]Department of Mechanics,Huazhong University of Science and Technology [2]Department of Engineering Mechanics,University of Nebraska

出　　处：《Applied Mathematics and Mechanics(English Edition)》2013年第5期589-596,共8页应用数学和力学（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.10932004 and 11272127)

摘　　要：A structure consisting of a spiral piezoelectric transducer and a concentrated mass is proposed as a low-frequency piezoelectric power harvester. A theoretical model is developed for the system from the theory of piezoelectricity. An analysis is performed to demonstrate the low-frequency nature of the system. Other basic characteristics of the power harvester including the output power, voltage, and efficiency are also calculated and examined.A structure consisting of a spiral piezoelectric transducer and a concentrated mass is proposed as a low-frequency piezoelectric power harvester. A theoretical model is developed for the system from the theory of piezoelectricity. An analysis is performed to demonstrate the low-frequency nature of the system. Other basic characteristics of the power harvester including the output power, voltage, and efficiency are also calculated and examined.

关 键 词：PIEZOELECTRIC torsional motion LOW-FREQUENCY power harvester 

分 类 号：TN384[电子电信—物理电子学]