基于流固耦合作用的压电液压振动俘能器

李征; 万杰; 阚君武; 王淑云; 杨志刚; 程光明

doi:10.3788/OPE.20122005.1002

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基于流固耦合作用的压电液压振动俘能器

微纳技术与精密机械 | 更新时间：2020-08-12

- 基于流固耦合作用的压电液压振动俘能器
- Piezo-hydraulic energy harvester based on solid-fluid coupling vibration
- 光学精密工程 2012年20卷第5期页码：1002-1008
- 作者机构：
  
  1. 浙江师范大学精密机械研究所, 浙江金华 321004
  2. 吉林大学机械科学与工程学院, 吉林长春 130022
  3. 浙江师范大学数理与信息工程学院,浙江金华 321004
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No.51075371,51175478)();浙江省自然科学基金资助项目(No.Y4110315,Y1110529)()
- DOI：10.3788/OPE.20122005.1002
  中图分类号： TN384
- 收稿日期：2011-12-12，
  
  修回日期：2012-02-14，
  
  网络出版日期：2012-05-10，
  
  纸质出版日期：2012-05-10
- 稿件说明：
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李征, 万杰, 阚君武, 王淑云, 杨志刚, 程光明. 基于流固耦合作用的压电液压振动俘能器[J]. 光学精密工程, 2012,20(5): 1002-1008

LI Zheng, WAN Jie, KAN Jun-wu, WANG Shu-yun, YANG Zhi-gang, CHENG Guang-ming. Piezo-hydraulic energy harvester based on solid-fluid coupling vibration[J]. Editorial Office of Optics and Precision Engineering, 2012,20(5): 1002-1008
李征, 万杰, 阚君武, 王淑云, 杨志刚, 程光明. 基于流固耦合作用的压电液压振动俘能器[J]. 光学精密工程, 2012,20(5): 1002-1008 DOI： 10.3788/OPE.20122005.1002.

LI Zheng, WAN Jie, KAN Jun-wu, WANG Shu-yun, YANG Zhi-gang, CHENG Guang-ming. Piezo-hydraulic energy harvester based on solid-fluid coupling vibration[J]. Editorial Office of Optics and Precision Engineering, 2012,20(5): 1002-1008 DOI： 10.3788/OPE.20122005.1002.

摘要

提出一种基于流固耦合作用的压电液压振动俘能器来实现低频、高强度振动能量回收。介绍了浮能器的系统构成及工作原理并进行了理论及试验研究。理论分析结果表明

压电液压俘能器的性能是由环境振动频率/振动强度、液压缸/压电振子的结构性能参数、流体容积/特性以及系统背压(蓄能器预置压力)等多种要素共同决定的

仅当各要素配置合理时才能实现压电液压俘能器的预期功能。采用外径为60 mm、厚度为0.9 mm的双晶压电振子及外径为16 cm

长度为100 cm液压缸制作了试验样机

并以水为工作介质进行了不同频率/背压/激振器振幅条件下的试验测试。试验结果表明

存在最佳工作频率(8Hz)使压电液压俘能器输出电压最大

且输出电压随系统背压及液压缸振幅的增加而增加。其它条件不变时

0.4 MPa背压下的输出电压是背压0.2 MPa时的1.65倍。

Abstract

A Piezo-hydraulic Energy Harvester (PHEH) was presented based on solid-fluid coupling vibration to harvest low-frequency and high-level vibration energy

and its structure as well as working principle were introduced. With an established energy-conversion model

the influence factors on the piezo-hydraulic harvester were analyzed. The theoretic results show that the output performance of the PHEH depends on the vibration frequency/level

the structure and size of piezodisc/cylinder

liquid volume/performance

and system backpressure. The desired performance can not be achieved unless the above parameters are matched well. By a piezodisc with a diameter of 60 mm and a thickness of 0.9 mm and a cylinder with a diameter of 16 cm and a length of 100 cm

a PHVI was fabricated and tested by taking water as liquid medium at different frequencies/backpressures/exciter-amplitudes. The test results suggest that there is an optimal vibration frequency (8 Hz) for the PHEH to achieve the maximal output voltage

which rises with the increasing of backpressure and vibration level. In the case of unvaried other parameters

the achieved voltage from the PHEH under 0 .4 MPa is 1.65 times that under 0 .2 MPa.

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references

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