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首页> 外文期刊>Journal of Applied Polymer Science >Maximum actuation strain for dissipative dielectric elastomers with simultaneous effect of prestretch and temperature
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Maximum actuation strain for dissipative dielectric elastomers with simultaneous effect of prestretch and temperature

机译：耗散介电弹性体的最大致动应变，具有诸如普拉斯特和温度的同时效应

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摘要

A dielectric elastomer can generate giant deformation by the voltage actuation, but the deformation is often hindered by the electromechanical instability and "snap-through deformation," which may lead to electrical breakdown. In this study, for the first time, the mathematical model is established for dissipative dielectric elastomers in the dynamic model with simultaneous effect of prestretch and temperature in order to achieve maximum actuation strain. The deformation of the dissipative dielectric elastomer: VHB 4905/4910 is investigated for the two simple actuation methods: constant and ramping voltage actuation, respectively. The best combined conditions of voltage and prestretch to obtain a large deformation at different operating temperatures are studied in detail. Under the best combined conditions, the influences of three factors: voltage, prestretch, and temperature on the maximum actuation strain are analyzed. This study should offer a great help in the design of dielectric elastomer actuators, and give the guidance to the accomplishment of the large deformation of dissipative dielectric elastomer actuators. (C) 2017 Wiley Periodicals, Inc.
机译：介电弹性体可以通过电压致动产生巨大变形，但是通过机电不稳定和“快速变形”通常阻碍变形，这可能导致电击穿。在这项研究中，首次，在动态模型中建立数学模型，其在动态模型中具有诸如普拉斯特拉和温度的同时效果，以实现最大致动应变。研究了耗散介电弹性体：VHB 4905/4910的两种简单致动方法：恒定和斜坡电压致动。详细研究了在不同工作温度下获得大变形的最佳组合条件。在最佳组合条件下，分析了三种因素的影响：电压，紫荆花和温度对最大致动应变的影响。本研究应在介电弹性体致动器的设计中提供很大的帮助，并为耗散介电弹性体致动器的大变形提供了引导。 （c）2017 Wiley期刊，Inc。

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