Study on Tire-attached Energy Harvester for Low-speed Actual Vehicle Driving

15th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Zhang, Y.^1 ; Zheng, R.^1 ; Kaizuka, T.^1 ; Su, D.^1 ; Nakano, K.^2

Institute of Industrial Science, University of Tokyo, 4-6-1, Komaba, Tokyo, Meguro

153-8505, Japan^1

Interfaculty Initiative in Information Studies, University of Tokyo, 4-6-1, Komaba, Tokyo, Meguro

153-8505, Japan^2

关键词: Bistables;    Energy Harvester;    Gravitational forces;    Low speed;    Paved road;    Piezoelectric film;    Stochastic resonances;    Vibrating systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/660/1/012126/pdf
DOI  :  10.1088/1742-6596/660/1/012126

来源: IOP

【 摘 要 】

This study reports a tire-attached energy harvester, in which a cantilever beam pasted piezoelectric film and magnets with the same polarity are fabricated as a bistable vibrating system, for low-speed actual-vehicle driving. As the wheel rotates, the energy harvester is subjected to the noise produced from the interaction between the paved road and the rotating tire, and tangentially gravitational force as a periodic input can be applied to achieve the occurrence of stochastic resonance. Stochastic resonance can significantly stimulate the response of the bistable vibrating system, and therefore enhance the energy harvesting efficiency.