Characteristics of an energy harvester with composite trapezoidal piezoelectric cantilever beams

doi:10.11990/jheu.201803080

CORC > 兰州理工大学 > 兰州理工大学 > 机电工程学院

	Characteristics of an energy harvester with composite trapezoidal piezoelectric cantilever beams
	Chen, Wenke; Jin, Wuyin; Cao, Hui; Wang, An
刊名	Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University
	2019-06-05
卷号	40 期号:6 页码:1175-1181
关键词	Energy harvesting Nanocantilevers Natural frequencies Piezoelectric ceramics Piezoelectric devices Piezoelectricity Transfer functions Added mass Broadband Energy Harvester Piezoelectric bimorphs Power generation efficiency
ISSN号	10067043
DOI	10.11990/jheu.201803080
英文摘要	Trapezoidal cantilever beams are applied as the piezoelectric energy harvester of multicantilever beams to widen the operating frequency bandwidth and improve energy harvesting efficiency under low-amplitude excitation frequency. The resonant frequency and transfer function of the system are calculated in accordance with the three-dimensional scale and additional mass at the free end of cantilever beam and deduced through the equivalent processing of the bimorph and the elastic base beam to establish the mathematical model of the transverse vibration of the trapezoidal cantilever beam. The model of the composite trapezoidal piezoelectric energy harvester system is derived on the basis of this analysis. Results show that the composite trapezoidal cantilever beams structure can effectively widen the working frequency band and facilitates resonance matching with the environmental vibration frequency to improve power generation efficiency. This work is an important reference for optimizing the design and application of the energy harvesters of multicantilever beams. © 2019, Editorial Department of Journal of HEU. All right reserved.
语种	中文
出版者	Editorial Board of Journal of Harbin Engineering
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113885]
专题	机电工程学院土木工程学院
作者单位	School of Mechanical and Electrical Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Chen, Wenke,Jin, Wuyin,Cao, Hui,et al. Characteristics of an energy harvester with composite trapezoidal piezoelectric cantilever beams[J]. Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University,2019,40(6):1175-1181.
APA	Chen, Wenke,Jin, Wuyin,Cao, Hui,&Wang, An.(2019).Characteristics of an energy harvester with composite trapezoidal piezoelectric cantilever beams.Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University,40(6),1175-1181.
MLA	Chen, Wenke,et al."Characteristics of an energy harvester with composite trapezoidal piezoelectric cantilever beams".Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University 40.6(2019):1175-1181.