Coupled Finite Element Analysis Modeling and Deformation of ICPF Actuator

对离子导电聚合物薄膜（ICPF）和金属复合材料的静电场、离子扩散和结构耦合变形进行了分析和实验。本研究的目的是：（1）发展和比较适用于ICPF作动器变形分析的耦合分析算法;（2）确定ICPF作动器的本构模型;（3）考虑未来多耦合有限元分析的必要性.耦合分析算法对ICPF驱动器进行了变形试验，以确定变形与离子扩散之间的耦合效应。提出了几种耦合分析算法，并从精度、计算时间等方面进行了比较。从理论上分析了几种交错算法的耦合算法的数值不稳定性。并与实验结果进行了比较.复合材料的本构模型对非均匀镀覆和非均匀形状的各种情况进行了有限元耦合分析，以验证本构模型的正确性。对复合材料的壳单元建模进行了研究.分析了多重耦合有限元分析的必要性，探讨了多重耦合建模的局限性和未来的问题。为了准确地预测执行器的动态变形，还需要进行包括流体动力学耦合效应的多重耦合有限元分析。

Analyses and experiments on electrostatic field, ionic diffusion and structural coupled deformation are described for ion conductive polymer film (ICPF) and metal composite material. The purpose of this study are : (1) To develop and compare the coupling analysis algorithms suitable for the ICPF actuator deformation analysis ; (2) To determine the constitutive modeling of the ICPF actuator : (3) To consider the necessity of future multiply coupled finite element analysis.The results obtained in this study are as follows.1. Coupled analysis algorithmsDeformation tests of ICPF actuator were performed to determine the coupling effect between the deformation and ionic diffusion. Some coupling analysis algorithms are proposed and compared in the view point of accuracy, computation time. Numerical instability of the coupled algorithms were theoretically examined for several types of staggered algorithms. The results were compared with the experimental results.2. constitutive modeling of the composite materialFinite element coupled analysis were performed for various conditions with non-uniform plating and non-uniform shape to verify the constitutive model. Shell element modeling for the composite material was also examined.3. necessity of multiply coupled finite element analysisThe limit and the future problem of the coupled modeling was also examined. Multiply coupled finite element analysis including the coupling effect with fluid dynamics is also needed to accurately predict the dynamic deformation of the actuator.