A bistable buckled beam based approach for vibrational energy harvesting

被引：89
作者：
Ando, B. [1 ]
Baglio, S. [1 ]
Bulsara, A. R. [2 ]
Marletta, V. [1 ]
机构：
[1] Univ Catania, DIEEI, Catania, Italy
[2] Space & Naval Warfare Syst Ctr Pacific, San Diego, CA 92152 USA
来源：
SENSORS AND ACTUATORS A-PHYSICAL | 2014年 / 211卷
关键词：
Nonlinear energy harvesting; Bistable systems; Snap through buckling; Wideband vibrations; Piezoelectric materials;
D O I：
10.1016/j.sna.2013.12.027
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents a low cost solution for vibrational energy harvesting based on a bistable clamped-clamped polyethylene terephthalate (PET) beam and two piezoelectric transducers. Beam switching (between two stable steady states) is activated by environmental vibrations. The mechanical-to-electrical energy conversion is performed by two piezoelectric transducers laterally installed to experience beam impacts each time the device switches from one stable state to the other one. The main advantage of our approach lies in the wide frequency bandwidth of the device: in turn, this leads to improved efficiency at very low cost. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：153 / 161
页数：9
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