Temperature effect on the performance of a dissipative dielectric elastomer generator with failure modes
Temperature effect on the performance of a dissipative dielectric elastomer generator with failure modes
复制标题
温度对具有故障模式的耗散介电弹性体发电机性能的影响
DOI：
10.1088/0964-1726/25/5/055017
复制
发表时间：
2016-05-01
影响因子：
4.1
通讯作者：
Li, G. Y.
中科院分区：
文献类型：
--
作者：
Chen, S. E.;Deng, L.;Li, G. Y.
介电弹性体发电机（DEG）是一种将机械能转化为电能的发电装置，近年来受到广泛关注。然而，很少有工作考虑的工作温度，粘弹性和漏电流同时分析DEG。在这项研究中，在几个复合四冲程转换周期，机电性能和能量转换的耗散DEG制成的超高键（VHB）弹性体在不同的工作温度下进行了研究。计算了不同温度下的能量密度和转换效率等性能参数。此外，发电机的常见故障模式被认为是：材料断裂，张力损失，电击穿和机电不稳定。数值计算结果表明，工作温度对DEG的性能有重要影响，这可能使DEG具有更高的转换效率。
Research on dielectric elastomer generators (DEGs) which can be utilized to convert mechanical energy to electrical energy has gained wide attention lately. However, very few works account for the operating temperature, viscoelasticity and current leakage in the analysis of DEGs simultaneously. In this study, under several compound four-stroke conversion cycles, the electromechanical performance and energy conversion of a dissipative DEG made of a very-high-bond (VHB) elastomer are investigated at different operating temperatures. The performance parameters such as energy density and conversion efficiency are calculated under different temperatures. Moreover, the common failure modes of the generator are considered: material rupture, loss of tension, electrical breakdown and electromechanical instability. The numerical results have distinctly shown that the operating temperature plays an important role in the performance of DEGs, which could possibly make a larger conversion efficiency for the DEG.