Deformable dielectrics – optimization of heterogeneities
Deformable dielectrics – optimization of heterogeneities
复制标题
可变形电介质——异质性的优化
DOI：
10.1016/j.ijengsci.2010.03.001
复制
发表时间：
2010
影响因子：
6.6
通讯作者：
Sven Klinkel
中科院分区：
文献类型：
--
作者：
R. Müller;Bai;D. Gross;M. Lyschik;D. Schrade;Sven Klinkel
在耦合机电框架中讨论了可变形电介质的建模和数值模拟。演示了如何将麦克斯韦应力贡献有效地应用到有限元方法中。通过数值模拟，计算并检查了软执行器的静电收缩。使用 Neo-Hooke 材料模型获得类似电容器设置的工作曲线，即压缩相对于施加电场的变化。此外，还讨论了在软弹性体中引入陶瓷夹杂物的想法，该想法被证明能够提高执行器的效率。通过代表性实例，考虑了夹杂物的几何优化。
The modeling and the numerical simulation of deformable dielectrics are discussed in a coupled electro-mechanical framework. It is demonstrated how the Maxwell stress contributions can be implemented efficiently into a finite element method. By using numerical simulation, the electro-static contraction of a soft actuator is calculated and examined. The operational curve, i.e. the variation of the compression versus the applied electric field, is obtained for a capacitor-like setup using the neo-Hooke material model. Furthermore, the idea of introducing ceramic inclusions in the soft elastomer is discussed, which is shown to be capable of improving the efficiency of the actuator. By representative examples, the geometry optimization of the inclusion is considered.