Self-tuning Enhanced Dynamic Behavior of Rotating Vibration Energy Harvester with Multi-field Coupling Effect

被引：0

作者：

Zhou, Yuyang ^{[1
,2
]}

Zhang, Haibin ^{[1
,2
]}

Chen, Yuanbo ^{[1
,2
]}

Li, Kangkang ^{[1
,2
]}

Wang, Yufei ^{[1
,2
]}

Wang, Guangqing ^{[1
,2
]}

机构：

[1] School of Information and Electronic Engineering, Zhejiang Gongshang University, Hangzhou

[2] Institute of Artificial Intelligence of Sussex, Zhejiang Gongshang University, Hangzhou

来源：

Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2025年 / 61卷 / 10期

关键词：

dynamic behavior enhancement; multi-field coupling; rotating vibration energy harvester; self-tuning;

D O I：

10.3901/JME.2025.10.495

中图分类号：

学科分类号：

摘要：

A novel tuning method for a rotating energy harvester based on multi-field coupling effect and collaborative enhancement mechanism of centrifugal field, magnetic field, and gravity field is proposed, and a rotating vibration energy harvester integrating inner and outer magnetic-mechanical-piezoelectric cantilever beams is designed and constructed. By utilizing the coupling and synergistic effect of centrifugal force, magnetic force, and gravity, the inner and outer piezoelectric cantilever beams respectively produce stiffness softening and hardening effects, achieving synchronous expansion of the low-frequency and high-frequency working range of the energy harvester; Further utilizing the coupling and synergistic effects of centrifugal force, magnetic force, and gravity to generate additional periodic excitations on the inner and outer piezoelectric cantilever beams, the dynamic response amplitude and output electrical power of the energy harvester are synchronously enhanced. A key dynamic behavior analysis model for a rotating energy harvester is established using the energy method and Hamilton’s principle. The influence of centrifugal force, magnetic force, and gravity on the dynamic output characteristics and frequency band tuning mechanism of the energy harvester is simulated and analyzed. The experimental results show that under multi-field coupling effect, the operating frequency bands of the inner and outer piezoelectric beams have increased by 2.5 Hz and 5.5 Hz, respectively, and the output voltages have increased by 1.9 V and 2.6 V, respectively, with a maximum output power of 0.055 mW. The research results provide theoretical and experimental references for the development and design of high-performance broadband rotational vibration energy harvesters. © 2025 Chinese Mechanical Engineering Society. All rights reserved.

引用

页码：495 / 511

页数：16

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