Bio-inspired bistable piezoelectric energy harvester for powering animal telemetry tags: concept design and preliminary experimental validation
Bio-inspired bistable piezoelectric energy harvester for powering animal telemetry tags: concept design and preliminary experimental validation
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DOI：
10.1117/12.2582609
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发表时间：
2021-03
期刊：
影响因子：
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通讯作者：
Feng Qian;Mingyi Liu;Jianuo Huang;Jiajun Zhang;H. Jung;Z. Deng;M. Hajj;L. Zuo
中科院分区：
文献类型：
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作者：
Feng Qian;Mingyi Liu;Jianuo Huang;Jiajun Zhang;H. Jung;Z. Deng;M. Hajj;L. Zuo
本文介绍了一种新的生物启发的双稳态压电能量采集器的概念设计，初步实验验证和性能评估的自供电鱼类遥测标签。自供电的鱼标签被设计为外部部署在鱼类（背鳍）上，以跟踪和监测鱼类栖息地，种群和水下环境，同时，从鱼类运动和周围流体流动中获取能量，以实现可持续的电力供应。受捕蝇草形状快速变化的启发，研制了一种双稳态压电能量采集器，利用鱼类操纵和流体的宽带激励发电。海崖体集成到压电能量采集器的自由端，以增强结构-流体相互作用，从而实现大振幅的突跳振动和更高的电压输出。在水槽中对仿生双稳态压电能量采集器进行了受控实验室实验，使用伺服电机系统模拟鱼类在各种条件下的摆动运动，以评估发电性能。初步的水下实验结果表明，所提出的仿生双稳态压电有效地转换鱼摆动运动转化为电能。在摆角为30°、频率为1.6Hz时，平均输出功率为1.5mW。
This paper presents the concept design, preliminary experimental validation, and performance evaluation of a novel bio-inspired bi-stable piezoelectric energy harvester for self-powered fish telemetry tags. The self-powered fish tag is designed to externally deploy on fish (dorsal fin) to track and monitor fish habitats, population, and underwater environment, meanwhile, harvests energy from fish motion and surrounding fluid flow for a sustainable power supply. Inspired by the rapid shape transition of the Venus flytrap, a bi-stable piezoelectric energy harvester is developed to generate electricity from broadband excitation of fish maneuvering and fluid. A bluff body is integrated to the free end of the bistable piezoelectric energy harvester to enhance the structure-fluid interaction for the large-amplitude snap-through vibrations and higher voltage output. Controlled laboratory experiments are conducted in a water tank on the bio-inspired bi-stable piezoelectric energy harvester using a servo motor system to simulate fish swing motion at various conditions to evaluate the power generation performance. The preliminary underwater experimental results demonstrated that the proposed bio-inspired bi-stable piezoelectric effectively converters fish swing motions into electricity. The average power output of 1.5 mW was achieved at the swing angle of 30° and frequency of 1.6 Hz.