中国机械工程 ›› 2025, Vol. 36 ›› Issue (10): 2249-2257.DOI: 10.3969/j.issn.1004-132X.2025.10.011

• 机械基础工程 • 上一篇    

基于旋转磁力-风致振动的混合式压电振子发电性能

闫晓东1,2,3(), 周公博1,2,3(), 周坪1,2,3, 韩链锋1,2,3, 李庆1,2,3, 曹爽1,2,3   

  1. 1.中国矿业大学机电工程学院, 徐州, 221116
    2.高端矿山装备国家级重点实验室(培育建设点), 徐州, 221116
    3.智能采矿装备技术全国重点实验室, 徐州, 221116
  • 收稿日期:2024-09-11 出版日期:2025-10-25 发布日期:2025-11-05
  • 通讯作者: 周公博
  • 作者简介:闫晓东,男,1995年生,博士后研究人员。研究方向为无线传感器网络、能量收集技术。E-mail:yanxiaodong@cumt.edu.cn
    周公博*(通信作者),男,1985年生,教授、博士研究生导师。研究方向为矿山装备智能运维、无线传感器网络、能量收集技术。E-mail:gbzhou@cumt.edu.cn
  • 基金资助:
    中央高校青年教师科研创新能力支持项目(ZYGXQNJSKYCXNLZCXM-E2P);中国博士后科学基金(2025M771383);江苏省杰出青年基金(BK20180033);江苏高校优势学科建设工程项目

Power Generation Performance of Hybrid Piezoelectric Vibrator Based on Rotational Magnetic Force-wind Induced Vibrations

Xiaodong YAN1,2,3(), Gongbo ZHOU1,2,3(), Ping ZHOU1,2,3, Lianfeng HAN1,2,3, Qing LI1,2,3, Shuang CAO1,2,3   

  1. 1.School of Mechatronic Engineering,China University of Mining and Technology,Xuzhou,Jiangsu,221116
    2.State Key Laboratory of High and Mining Equipment (Cultivation and Construction Site),Xuzhou,Jiangsu,221116
    3.State Key Laboratory of Intelligent Mining Equipment Technology,Xuzhou,Jiangsu,221116
  • Received:2024-09-11 Online:2025-10-25 Published:2025-11-05
  • Contact: Gongbo ZHOU

摘要:

针对传统单一风致振动式压电振子能量收集效率低的问题,提出了一种基于旋转磁力-风致振动的混合式压电振子。以井下综采工作面的风能为研究背景,设计了混合式压电振子模型,建立磁力耦合模型,分析了不同磁矩时压电振子的磁力变化特性;对所设计压电振子的流场特性进行了仿真分析;最后通过实验对压电振子的发电性能进行了验证。研究结果表明:所设计压电振子的整体发电功率随着直径比的增大而增大,且存在合适的磁矩和长径比值使得混合式压电振子的发电性能达到最佳,当风速v=3.5 m/s时,最大发电功率达0.72 mW以上;与单一风致振动式压电振子相比,提出的旋转磁力-风致振动混合式压电振子的发电功率提高了166.7%以上。

关键词: 压电振子, 风致振动, 旋转磁力, 磁矩, 长径比, 发电性能

Abstract:

Aiming at the problems of low energy harvesting efficiency in traditional single wind-induced vibration piezoelectric vibrator, a hybrid piezoelectric vibrator was proposed based on rotational magnetic force and wind-induced vibrations. With the wind energy from an underground mechanized mining face as the research backdrop, a hybrid piezoelectric vibrator model was conceived. A magnetic coupling model was formulated to elucidate the magnetic variation traits of the piezoelectric vibrator across various magnetic moments. A simulation was conducted to scrutinize the flow field characteristics of the designed piezoelectric vibrator. Lastly, experimental validation was executed to substantiate the power generation performance of the piezoelectric vibrator. The results indicate that the overall power generation of the designed piezoelectric vibrator increases with the diameter ratio, and there is an optimal magnetic moment and aspect ratio for achieving the best power generation performance of the hybrid piezoelectric vibrator. When the wind speed v=3.5 m/s, the maximum power generation reaches over 0.72 mW. Compared with a single wind-induced vibration piezoelectric vibrator, the proposed hybrid piezoelectric vibrator with rotating magnetic force and wind-induced vibrations increases the power generation by more than 166.7 %.

Key words: piezoelectric vibrator, wind-induced vibration, rotational magnetic force, magnetic moment, aspect ratio, power generation performance

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