Two Methods to Broaden the Bandwidth of a Nonlinear Piezoelectric Bimorph Power Harvester

	Two Methods to Broaden the Bandwidth of a Nonlinear Piezoelectric Bimorph Power Harvester
	Hu, Hongping; Dai, Longxiang; Chen, Hao; Jiang, Shan; Wang, Hairen; Laude, Vincent
刊名	JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME
	2017
卷号	139 期号:3 页码:31008-
英文摘要	We propose two methods to broaden the operation bandwidth of a nonlinear pinned-pinned piezoelectric bimorph power harvester. The energy-scavenging structure consists of a properly poled and electroded flexible bimorph with a metallic layer in the middle, and is subjected to flexural vibration. Nonlinear effects at large deformations near resonance are considered by taking the in-plane extension of the bimorph into account. The resulting output powers are multivalued and exhibit jump phenomena. Two methods to broaden the operation bandwidth are proposed: The first method is to extend the operation frequency to the left single-valued region through optimal design. The second method is to excite optimal initial conditions with a voltage source. Larger output powers in the multivalued region of the nonlinear harvester are obtained. Hence, the operation bandwidth is broadened from the left single-valued region to the whole multivalued region.
语种	英语
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/17347]
专题	中国科学院紫金山天文台
推荐引用方式 GB/T 7714	Hu, Hongping,Dai, Longxiang,Chen, Hao,et al. Two Methods to Broaden the Bandwidth of a Nonlinear Piezoelectric Bimorph Power Harvester[J]. JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME,2017,139(3):31008-.
APA	Hu, Hongping,Dai, Longxiang,Chen, Hao,Jiang, Shan,Wang, Hairen,&Laude, Vincent.(2017).Two Methods to Broaden the Bandwidth of a Nonlinear Piezoelectric Bimorph Power Harvester.JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME,139(3),31008-.
MLA	Hu, Hongping,et al."Two Methods to Broaden the Bandwidth of a Nonlinear Piezoelectric Bimorph Power Harvester".JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME 139.3(2017):31008-.