| 基于双稳态的振动能量收集系统的设计 |
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| 引用本文： | 姚丙盟,刘志平,李文锋. 基于双稳态的振动能量收集系统的设计[J]. 中国机械工程, 2015, 26(13): 1736-1741 |
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| 作者姓名： | 姚丙盟 刘志平 李文锋 |
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| 作者单位： | 武汉理工大学，武汉，430063 |
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| 基金项目： | 国家自然科学基金资助项目(51175394) |
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| 摘 要： | 利用外部永磁铁、悬臂梁和压电材料等构成了能量收集系统，并对该系统的影响因素进行了理论与实验探究。结果发现：只有在合适的磁铁距离下，系统才具有双稳态特性，而且这种特性拓宽了系统的频率响应范围，使系统获得更大的响应幅值。只有在适当的激励幅值和激励频率下，该非线性系统才能获得比线性系统更高的能量俘获效率。
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| 关 键 词： | 振动能量收集 双稳态 压电悬臂梁 非线性的 |
Design of Vibration Energy Harvester Based on Bistability |
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| Yao Bingmeng,Liu Zhiping,Li Wenfeng. Design of Vibration Energy Harvester Based on Bistability[J]. China Mechanical Engineering, 2015, 26(13): 1736-1741 |
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| Authors: | Yao Bingmeng Liu Zhiping Li Wenfeng |
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| Affiliation: | Wuhan University of Technology，Wuhan，430063 |
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| Abstract: | An energy harvester was designed by permanent magnets, a cantilever beam, piezoelectric material and so on, and the influence factors were studied experimentally and theoretically herein.The conclusion is made that the system has a bistable behavior under the suitable magnetic distance, which broadens the range of frequency response and increases the response amplitude, and the nonlinear bistable system has a higher efficiency of energy harvesting than that of a linear system under the suitable excitation amplitude and excitation frequency. |
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| Keywords: | vibration energy harvesting bistability piezoelectric cantilever beam nonlinear |
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