On energy harvesting from a vibro-impact oscillator with dielectric membranes

被引：61
作者：
Lai, Z. H. [1 ,3 ,4 ]
Thomson, G. [1 ]
Yurchenko, D. [1 ]
Val, D. V. [2 ]
Rodgers, E. [1 ]
机构：
[1] Heriot Watt Univ, IMPEE, Edinburgh EH14 4AS, Midlothian, Scotland
[2] Heriot Watt Univ, Inst Infrastruct & Environm, Edinburgh EH14 4AS, Midlothian, Scotland
[3] Nanchang Univ, Sch Mechatron Engn, Nanchang 330031, Jiangxi, Peoples R China
[4] Nanchang Univ, Key Lab Lightweight & High Strength Struct Mat Ji, Nanchang 330031, Jiangxi, Peoples R China
来源：
MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2018年 / 107卷
关键词：
Non-linear energy harvesting; Dielectric elastomet; Vibro-impact; Bouncing ball; DYNAMICS; SYSTEM; VIBRATIONS; FREQUENCY; RESONANCE; DESIGN;
D O I：
10.1016/j.ymssp.2018.01.025
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A vibro-impact mechanical system comprising of a ball moving freely between two dielectric membranes located at a certain distance from each other is studied. The system generates electricity when the ball moving due ambient vibrations impacts one of the membranes. The energy harvesting principle of the proposed system is explained and then used to formulate a numerical model for estimating the system output voltage. The dynamic behavior and output performance of the system are thoroughly studied under a harmonic excitation, as well as different initial conditions and various values of the restitution coefficient of the membranes. The delivered research results are useful for selecting the system parameters to achieve its optimal output performance in a realistic vibrational environment. Potential application of the proposed system for energy harvesting from car engine vibrations is presented. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：105 / 121
页数：17
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