Performance of dissipative dielectric elastomer generators

被引：100

作者：

Foo, Choon Chiang ^{[1
,2
]}

Koh, Soo Jin Adrian ^{[2
,3
,4
]}

Keplinger, Christoph ^{[1
,5
]}

Kaltseis, Rainer ^{[5
]}

Bauer, Siegfried ^{[5
]}

Suo, Zhigang ^{[1
]}

机构：

[1] Harvard Univ, Sch Engn & Appl Sci, Kavli Inst Nanobio Sci & Technol, Cambridge, MA 02138 USA

[2] Inst High Performance Comp, Singapore 138632, Singapore

[3] Natl Univ Singapore, Engn Sci Programme, Singapore 119260, Singapore

[4] Natl Univ Singapore, Dept Civil & Environm Engn, Singapore 119260, Singapore

[5] Johannes Kepler Univ Linz, Soft Matter Phys Dept, A-4040 Linz, Austria

来源：

JOURNAL OF APPLIED PHYSICS | 2012年 / 111卷 / 09期

基金：

欧洲研究理事会;

关键词：

ACTUATORS;

D O I：

10.1063/1.4714557

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Dielectric elastomer generators are high-energy-density electromechanical transducers. Their performance is affected by dissipative losses. This paper presents a theoretical analysis of a dielectric elastomer generator with two dissipative processes: viscoelasticity and current leakage. Conversion cycles are shown to attain steady-state after several cycles. Performance parameters such as electrical energy generated per cycle, average power, and mechanical to electrical energy conversion efficiency are introduced. Trade-offs between large electrical energy and power output and poor conversion efficiency are discussed. Excessive current leakage results in negative efficiency-the dielectric elastomer generator wastes energy instead of generating it. The general framework developed in this paper helps in the design and assessment of conversion cycles for dissipative dielectric elastomer generators. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4714557]

引用

页数：9

共 32 条

[1] Stretching Dielectric Elastomer Performance [J].