- 教授
- 博士生导师
- 硕士生导师
- 电子邮箱：
- 入职时间：2007-03-14
- 学历：博士研究生毕业
- 性别：男
- 学位：博士
- 在职信息：在职
- 毕业院校：西安交通大学
- 所属院系：机械工程学院
- 学科：机械工程
Modeling and experimental verification of doubly nonlinear magnet-coupled piezoelectric energy harvesting from ambient vibration
- 发布时间：2025-04-30
- 论文名称：Modeling and experimental verification of doubly nonlinear magnet-coupled piezoelectric energy harvesting from ambient vibration
- 发表刊物：Smart Materials and Structures
- 摘要：This paper presents a nonlinear doubly magnet-coupled energy harvesting system (DMEHS) which could exhibit co-bistable and monostable dynamic characteristics. Its various characteristic responses induced by the magnetic force can be conveniently obtained using the adjustable horizontal distance between two coupled harvesters in the DMEHS. In the case of appropriate relative positions, the DMEHS appears in a co-bistable structure which is different from the traditional bistable structure. Additionally, both the inclination angle of endmost magnets and the displacement perpendicular to the vibration direction are taken into account to calculate the nonlinear magnetic force in the nonlinear electromechanical equations. The numerical investigations show good agreement with experimental results with respect to the output voltage response. Each harvester without magnetic coupling is tested independently to compare with the DMEHS. Both numerical and experimental results also demonstrate the frequency bandwidth and performance enhancements by changing the horizontal distance between the two coupled harvesters.
- 合写作者：Shengxi Zhou, Junyi Cao*, Wei Wang, Shengsheng Liu, Jing Lin
- 卷号：24(5)
- 页面范围：055008-13
- 是否译文：否
- 发表时间：2015-05-07
- 合写作者：Shengxi Zhou, Junyi Cao*, Wei Wang, Shengsheng Liu, Jing Lin