潜水式尾流激振压电俘能器的输出性能研究

doi:10.3901/JME.2022.20.101

机械工程学报 ›› 2022, Vol. 58 ›› Issue (20): 101-110.doi: 10.3901/JME.2022.20.101

• 特邀专栏：振动俘能器件与系统 • 上一篇下一篇

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潜水式尾流激振压电俘能器的输出性能研究

单小彪, 隋广东, 田海港, 王艺聪, 谢涛

哈尔滨工业大学机器人技术与系统国家重点实验室哈尔滨 150001

收稿日期:2021-11-25 修回日期:2022-06-30 出版日期:2022-10-20 发布日期:2022-12-27
通讯作者: 单小彪(通信作者)，男，1978年出生，副教授，博士研究生导师。主要研究方向为俘能技术和抑振技术。E-mail：shanxiaobiao@hit.edu.cn
基金资助:
国家自然科学基金资助项目(51677043, 51875116)。

Output Characteristics Investigation of Submersible Wake-excited Piezoelectric Energy Harvester

SHAN Xiaobiao, SUI Guangdong, TIAN Haigang, WANG Yicong, XIE Tao

State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001

Received:2021-11-25 Revised:2022-06-30 Online:2022-10-20 Published:2022-12-27

摘要/Abstract

摘要： 为解决水下传感器的自供能问题，提出一种潜水式尾流激振压电俘能器。通过推导的俘能器流-固-电耦合场数学模型，结合有限元仿真模型，获得俘能器的流激力。仿真与试验数据具有良好的一致性，验证数学模型和仿真的正确性。对于振动柱直径为15 mm的俘能器，增加固定柱直径可有效提高其输出性能。当两柱中心距为20 mm时，PEH_05_15俘能器输出最大电压为23.36 V，是PEH_00_15俘能器最大输出电压的1.51倍。PEH_05_20俘能器在中心距为15 mm时输出最大电压为41.85 V，同比无固定柱俘能器的输出电压提升了1.21倍。

关键词: 压电俘能器, 尾流激振, 流-固-电耦合, 输出电压, 俘获性能

Abstract: To solve the problem of self-supply of underwater sensors, a submersible wake-excited piezoelectric energy harvester (PEH) is proposed. Through the deduced mathematical model of the fluid-solid-electric coupling field of the PEH, combined with the finite element simulation model, the flow excitation force of the PEH is obtained. The simulation and experimental data are in good agreement, which verifies the correctness of the mathematical model and simulation. When the diameter of the vibrating column is 15 mm, increasing the diameter of the fixed column can effectively improve the output performance. When the distance between the two columns is 20 mm, the maximum output voltage of the PEH_05_15 is 23.36 V, which is 1.51 times the maximum output voltage of PEH_00_15. When the distance between the two columns is 15 mm, the maximum output voltage of PEH_05_20 is 41.85 V, which is 1.21 times higher than that of PEH_00_20.

Key words: piezoelectric energy harvester, wake-excitation, fluid-solid-electric coupling, output voltage, harvesting performance

中图分类号:

TN384
TM619

单小彪, 隋广东, 田海港, 王艺聪, 谢涛. 潜水式尾流激振压电俘能器的输出性能研究[J]. 机械工程学报, 2022, 58(20): 101-110.

SHAN Xiaobiao, SUI Guangdong, TIAN Haigang, WANG Yicong, XIE Tao. Output Characteristics Investigation of Submersible Wake-excited Piezoelectric Energy Harvester[J]. Journal of Mechanical Engineering, 2022, 58(20): 101-110.

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潜水式尾流激振压电俘能器的输出性能研究

Output Characteristics Investigation of Submersible Wake-excited Piezoelectric Energy Harvester

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