白噪声激励下含线性振子的双稳态能量捕获器动力学特性研究

牛峰琦; 吴子英; 李孙猛

doi:10.13433/j.cnki.1003-8728.2016.1104

白噪声激励下含线性振子的双稳态能量捕获器动力学特性研究

doi: 10.13433/j.cnki.1003-8728.2016.1104

1.
西安理工大学机械与精密仪器工程学院, 西安 710048

基金项目:

国家自然科学基金项目（11572243）资助

详细信息

作者简介:
牛峰琦(1989-),硕士研究生,研究方向为非线性能量捕获技术,fengqiniu123@163.com

通讯作者:
吴子英(联系人),副教授,硕士生导师,ziyingwu@163.com

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- 文章访问数: 163
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- 被引次数: 0
出版历程
- 收稿日期: 2015-03-19
- 刊出日期: 2016-11-05

Dynamics Research of Bistable Energy Harvester with an Auxiliary Linear Oscillator under White Noise Excitation

1.
School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China

摘要

摘要: 目前，将环境振动直接转换为电能已成为能量捕获器研究的热点。对附加线性振子的双稳态电磁式能量捕获系统建立了动力学方程，从数值仿真的角度研究了白噪声激励下含线性振子的双稳态能量捕获器的动力学行为，分析了噪声强度、系统质量比和频率比对发电性能的影响。计算结果表明，随着噪声强度、质量比和频率比的增大，双稳态发电振子的运动幅值在不断增大，并且会产生大幅混沌运动，同时系统的输出电压也在不断增大，为双稳态电磁式能量捕获系统的相关研究提供了理论基础。
- 白噪声激励 /
- 双稳态能量捕获器 /
- 噪声强度 /
- 质量比 /
- 频率比
Abstract: The progress of science and technology makes the environment vibration into electrical energy as possible, now it has become the hot topics in the study of energy harvester. The system dynamics equation of bistable electromagnetic energy harvester with an auxiliary linear oscillator is established, from the perspective of numerical simulations to study dynamic behavior of bistable energy harvester with an auxiliary linear oscillator under white noise excitation; the effects of noise intensity, mass ratio and frequency ratio of the system on the electricity generating performance are analyzed. The computed results show that with the noise intensity, mass ratio and frequency ratio increase, the motion amplitude of bistable power oscillator is increased, and will generate substantial chaotic motion, while the output voltage of the system is also in constant increase. The study provides a theoretical basis for bistable electromagnetic energy harvester system research.
- white noise excitation /
- bistable energy harvester /
- noise intensity /
- mass ratio /
- frequency ratio

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参考文献(15)

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