| 弹性支撑双稳压电悬臂梁振动响应及能量采集研究 |
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| 引用本文： | 高毓璣,冷永刚,范胜波,赖志慧. 弹性支撑双稳压电悬臂梁振动响应及能量采集研究[J]. 物理学报, 2014, 63(9): 90501-090501. DOI: 10.7498/aps.63.090501 |
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| 作者姓名： | 高毓璣 冷永刚 范胜波 赖志慧 |
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| 作者单位： | 1. 天津大学机械工程学院, 天津 300072;2. 天津大学机构理论与装备设计教育部重点实验室, 天津 300072 |
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| 基金项目： | 国家自然科学基金(批准号:51275336);高等学校博士学科点专项科研基金(批准号:20120032110001)资助的课题~~ |
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| 摘 要： | 在分析了常规刚性支撑非线性能量采集系统的研究基础上,提出外部磁铁弹性支撑的结构设想,保证系统在低强度激励条件下也能处于双稳态振荡,提高机电能量转换效率.研究表明,对于强度变化的随机激励历程,弹性支撑非线性能量采集系统不需要实时调整磁铁间距,能够更好地迎合强度时刻变化的随机激励源,实现高效的机电能量转换.
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| 关 键 词： | 能量采集 双稳结构 压电悬臂梁 弹性支撑 |
| 收稿时间： | 2013-11-15 |
Studies on vibration response and energy harvesting of elastic-supported bistable piezoelectric cantilever beams |
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| Gao Yu-Ji,Leng Yong-Gang,Fan Sheng-Bo,Lai Zhi-Hui. Studies on vibration response and energy harvesting of elastic-supported bistable piezoelectric cantilever beams[J]. Acta Physica Sinica, 2014, 63(9): 90501-090501. DOI: 10.7498/aps.63.090501 |
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| Authors: | Gao Yu-Ji Leng Yong-Gang Fan Sheng-Bo Lai Zhi-Hui |
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| Abstract: | Based on the results of study on conventional rigid support nonlinear energy harvesters, in this paper, we conceive a kind of structure with an elastic-supported external magnet, for keeping the system in a state of bistable oscillation due to low-intensity excitations. Thus, an efficient electromechanical energy conversion can be accomplished. Studies show that the elastic-supported nonlinear energy harvesting systems do not need real-time adjustment of magnet spacings to meet varying-intensity random excitation vibrations. This structure helps to better satisfy the variable-intensity random excitation source, consequently it achieves efficiently electromechanical energy conversion.
Keywords：energy harvestingbistable oscillationpiezoelectric cantileverelastic support |
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| Keywords: | energy harvesting bistable oscillation piezoelectric cantilever elastic support |
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