Analysis effects on operating frequency range by geometrical nonlinearity in electromagnetic vibration energy harvesters

doi:10.1088/2631-8695/ac1cd6

CQUET-IR

	Analysis effects on operating frequency range by geometrical nonlinearity in electromagnetic vibration energy harvesters
	Lei, YM ; Hu, YB ; Shen, TJ ; Li, QL ; Zhang, HM
	2021-09-01
发表期刊	ENGINEERING RESEARCH EXPRESS
ISSN	2631-8695
EISSN	2631-8695
卷号	3 期号:3
摘要	The paper aims to analyze and verify how geometrical nonlinearity of the microstructure affect the bandwidth of the vibration energy harvesters (EVEHs). In the paper, an electromagnetic energy harvester which has three nonlinear vibration pickup systems is analyzed and measured. Different degrees of geometric nonlinearity under certain condition can be shown by vibration pickup systems which are composed different folded beams in the EVEH. By using static simulation and numerical calculation methods, the nonlinear degree of each vibration pickup system is estimated, and the relationship between the nonlinear degree and the working bandwidth of each vibration pickup system is simulated and analyzed. The principle prototype is measured. The results show that the geometrical nonlinerity of vibration pickup systems is proportional to the excitation acceleration, and the bandwidth increases with increasing geometrical nonlinearity the bandwidth. Meanwhile, the results indicate that the vibration pickup system with greater geometrical nonlinearity has better frequency broad ability in low frequency vibration environment. The measured results and analytical results exhibit excellent agreement and the analysis method of structural nonlinearity in the paper may be helpful in designing structures of micro vibration energy harvesters.
关键词	vibration pickup system DESIGN nonlinearity amplitude-frequency response bandwidth numerical analysis Energy harvesting Frequency response Geometry Nonlinear analysis Numerical analysis Numerical methods Pickups Vibration analysis Amplitude frequency response Electromagnetic vibrations Energy Harvester Frequency ranges Geometrical non linearity Non linear vibrations Nonlinearity Operating frequency Vibration energy harvesters Vibration pickup system
DOI	10.1088/2631-8695/ac1cd6
收录类别	ESCI ; EI
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Multidisciplinary
WOS记录号	WOS:000739515100001
出版者	IOP Publishing Ltd
EI入藏号	20213910939446
EI分类号	525.5 Energy Conversion Issues ; 716.1 Information Theory and Signal Processing ; 921 Mathematics ; 921.6 Numerical Methods
原始文献类型	Article ; Journal article (JA)
出版地	BRISTOL
引用统计	被引频次[WOS]：0 [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.cqcet.edu.cn/handle/39TD4454/10411
专题	重庆电子科技职业大学
作者单位	1.Chongqing Coll Elect Engn, Sch Artificial Intelligence & Big Data, Chongqing 401331, Peoples R China; 2.Xiamen Univ, Sch Informat, Xiamen, Peoples R China
推荐引用方式 GB/T 7714	Lei, YM,Hu, YB,Shen, TJ,et al. Analysis effects on operating frequency range by geometrical nonlinearity in electromagnetic vibration energy harvesters[J]. ENGINEERING RESEARCH EXPRESS,2021,3(3).
APA	Lei, YM,Hu, YB,Shen, TJ,Li, QL,&Zhang, HM.(2021).Analysis effects on operating frequency range by geometrical nonlinearity in electromagnetic vibration energy harvesters.ENGINEERING RESEARCH EXPRESS,3(3).
MLA	Lei, YM,et al."Analysis effects on operating frequency range by geometrical nonlinearity in electromagnetic vibration energy harvesters".ENGINEERING RESEARCH EXPRESS 3.3(2021).