一种新型非线性压电阵列式能量收集器的仿真
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摘要
为了提高压电能量收集器的输出性能,设计了一种新型压电能量收集器,该能量收集器将压电悬臂梁阵列排布,通过增加两个永磁铁对结构进行改进,建立其系统方程并将方程无量纲化,通过Matlab仿真分析其在白噪声下的输出功率、机电能量转换率,仿真结果表明,该压电能量收集器能有效提高输出功率和机电能量转换率。
A new piezoelectric vibration energy harvester was proposed to improve its output characteristics. The piezoelectric beam was arranged in array. Two magnets were introduced to improve the structure. The mathematics model of proposed energy harvester was established; and based on dimensionless method,the output power and energy conversion efficiency of the system by inputting white noise were simulated by Matlab. The analysis shows that the output power and energy conversion efficiency of the proposed vibration energy harvester are improved efficiently.
A new piezoelectric vibration energy harvester was proposed to improve its output characteristics. The piezoelectric beam was arranged in array. Two magnets were introduced to improve the structure. The mathematics model of proposed energy harvester was established; and based on dimensionless method,the output power and energy conversion efficiency of the system by inputting white noise were simulated by Matlab. The analysis shows that the output power and energy conversion efficiency of the proposed vibration energy harvester are improved efficiently.
引文
[1]BOZIDAR M.Piezoelectric wide-bandwidth vibration energy harvester-smart Sand[D].Yale:Yale University,2011.
[2]刘祥建,陈仁文.压电振动能量收集装置研究现状及发展趋势[J].振动与冲击,2012,31(16):169-176.
[3]王青萍.基于压电悬臂梁的振动能量收集器的研究[D].武汉:华中科技大学,2011.
[4]ERTURK A,INMAN D J.Broadband piezoelectric power generation on high-energy orbits of the bistable duffing oscillator with electromechanical coupling[J].Journal of Sound and Vibration,2011,330(10):2339-2353.
[5]崔岩,王飞,董维杰,等.非线性压电式能量采集器[J].光学精密工程,2012,20(12):2737-2743.
[6]STANTON S C,OWENS B A M,MANN B P.Harmonic balance analysis of the bistable piezoelectric inertial generator[J].Journal of Sound and Vibration,2012,331(15):3617-3627.
[7]佘引,温志渝,赵兴强,等.MEMS压电阵列振动能量收集器[J].传感技术学报,2014,27(8):1033-1037.
[8]WEN Z Y,DENG L C,ZHAO X Q,et al.Improving voltage output with PZT beam array for MEMS-based vibration energy harvester:theory and experiment[J].Microsystem Technologies,2015,21(2):331-339.
[9]陈定方,孔建益,杨家军,等.现代机械设计师手册[M].北京:机械工业出版社,2014:1326-1328.
[10]孙舒.双稳态压电悬臂梁发电系统的动力学特性研究[D].天津:天津大学,2013.
[11]高毓璣,冷永刚,范胜波,等.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):62-74.
[2]刘祥建,陈仁文.压电振动能量收集装置研究现状及发展趋势[J].振动与冲击,2012,31(16):169-176.
[3]王青萍.基于压电悬臂梁的振动能量收集器的研究[D].武汉:华中科技大学,2011.
[4]ERTURK A,INMAN D J.Broadband piezoelectric power generation on high-energy orbits of the bistable duffing oscillator with electromechanical coupling[J].Journal of Sound and Vibration,2011,330(10):2339-2353.
[5]崔岩,王飞,董维杰,等.非线性压电式能量采集器[J].光学精密工程,2012,20(12):2737-2743.
[6]STANTON S C,OWENS B A M,MANN B P.Harmonic balance analysis of the bistable piezoelectric inertial generator[J].Journal of Sound and Vibration,2012,331(15):3617-3627.
[7]佘引,温志渝,赵兴强,等.MEMS压电阵列振动能量收集器[J].传感技术学报,2014,27(8):1033-1037.
[8]WEN Z Y,DENG L C,ZHAO X Q,et al.Improving voltage output with PZT beam array for MEMS-based vibration energy harvester:theory and experiment[J].Microsystem Technologies,2015,21(2):331-339.
[9]陈定方,孔建益,杨家军,等.现代机械设计师手册[M].北京:机械工业出版社,2014:1326-1328.
[10]孙舒.双稳态压电悬臂梁发电系统的动力学特性研究[D].天津:天津大学,2013.
[11]高毓璣,冷永刚,范胜波,等.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):62-74.