一种微型压电振动能量发电装置的设计与分析

微特电机 ›› 2020, Vol. 48 ›› Issue (7): 7-11.

一种微型压电振动能量发电装置的设计与分析

赵伟, 张健滔, 贺明

上海大学机电工程与自动化学院, 上海 200072

收稿日期:2020-04-01 出版日期:2020-07-28 发布日期:2020-07-17
作者简介:赵伟(1993—),男,硕士,研究方向为压电能量收集。
基金资助:
国家自然科学基金资助项目(51305248);上海市自然科学基金资助项目(18ZR1414300,13ZR1416900)

Design and Analysis of a Micro Piezoelectric Vibration Energy Generator

ZHAO Wei, ZHANG Jian-tao, HE Ming

School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200072, China

Received:2020-04-01 Online:2020-07-28 Published:2020-07-17

摘要/Abstract

摘要： 设计了一款多槽型压电振动能量发电装置,通过开槽可增加压电元件的应力、应变以及发电能力。利用有限元方法建立发电装置的仿真分析模型,并进行静力学和模态仿真分析。基于压电发电装置输出的电能与压电陶瓷的应力、应变成正比,分析了压电陶瓷的长度、厚度和弹性基体厚度等参数对压电元件应力和应变的影响规律,并对微型压电振动能量发电装置进行优化。

关键词: 压电振动发电装置, 有限元模型, 仿真分析, 结构优化

Abstract: A multi-slot piezoelectric vibration energy generator was designed in the manuscript. It can increase the stress, strain and power generation capacity of the piezoelectric element through slotting. The finite element method was used to establish the simulation analysis model of the piezoelectric vibration energy generator. The static and modal simulation analyses were performed. The electric output charge of the piezoelectric vibration energy generator is proportional to the stress and strain of the piezoelectric ceramic. The influences of the length, thickness and thickness of the elastic substrate on the stress and strain of piezoelectric elements were analyzed, and the piezoelectric vibration energy generator was optimized.

Key words: piezoelectric vibration energy generator, finite element model, simulation analysis, structural optimization

中图分类号:

TM359.9

赵伟, 张健滔, 贺明. 一种微型压电振动能量发电装置的设计与分析[J]. 微特电机, 2020, 48(7): 7-11.

ZHAO Wei, ZHANG Jian-tao, HE Ming. Design and Analysis of a Micro Piezoelectric Vibration Energy Generator[J]. Small & Special Electrical Machines, 2020, 48(7): 7-11.

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