钹型阵列式压电俘能器的参数优化设计与实验

中国机械工程 ›› 2013, Vol. 24 ›› Issue (11): 1431-1436.

钹型阵列式压电俘能器的参数优化设计与实验

文晟;张铁民;张建桃;曹飞

华南农业大学,广州,510632

出版日期:2013-06-10 发布日期:2013-06-04
基金资助:
国家自然科学基金资助项目（50677023）
National Natural Science Foundation of China（No. 50677023）

Parametric Optimum Design and Experiment of a Cymbal Stack Piezoelectric Harvester

Wen Sheng;Zhang Tiemin;Zhang Jiantao;Cao Fei

South China Agricultural University,Guangzhou,510632

Online:2013-06-10 Published:2013-06-04
Supported by:
National Natural Science Foundation of China（No. 50677023）

摘要/Abstract

摘要：

基于参数优化理论,对钹型阵列式压电俘能器进行结构参数的优化设计。首先确定钹型堆叠阵列的结构形式并建立其参数化有限元模型,选择结构参数作为设计变量,并以压电陶瓷电极面上产生的电压作为目标函数。然后采用ANSYS优化设计模块中的子问题近似法,利用ANSYS的参数化语言APDL编程以实现对模型的结构优化。最后根据优化结果制作了钹型阵列式压电俘能器。实验结果表明：在外部激励不变的情况下,优化后压电俘能器产生的电压幅值提高了87%。

关键词: 钹型阵列, 压电俘能器, 有限元法, 参数优化

Abstract:

The optimum design of a cymbal stack piezoelectric harvester (CSPH) was presented using FEM parametric optimum. Firstly, the parameterized FEM model of the cymbal stack transducer was created on the basis of the initial configuration. The structural parameters were chosen as the design variables and the induced voltage on the electrode surface was taken as the objective functions. Secondly, the sub-problem approximation method was chosen as the basic tool of the structural updating. Then the structural optimization scheme of the piezoelectric harvester was carried out based on ANSYS parametric design language (APDL). Finally, a prototype CSPH was fabricated according to the optimum design results. The experimental results show that, the CSPH generated voltage amplitude is increased by 87% after optimization.

Key words: cymbal stack, piezoelectric harvester, finite element method(FEM), parametric optimum

中图分类号:

TN384

文晟, 张铁民, 张建桃, 曹飞. 钹型阵列式压电俘能器的参数优化设计与实验[J]. 中国机械工程, 2013, 24(11): 1431-1436.

WEN Cheng, ZHANG Tie-Min, ZHANG Jian-Tao, CAO Fei. Parametric Optimum Design and Experiment of a Cymbal Stack Piezoelectric Harvester[J]. China Mechanical Engineering, 2013, 24(11): 1431-1436.

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