【摘要】 基于ANSYS参数化开发平台,通过编制龙格-库塔算法用户子程序求解离子浓度偏微分方程,采用温度场模型等效模拟水分子重新分布引起的机械变形,制定分析流程,对离子交换膜金属复合材料(IPMC)的电致动特性进行了数值模拟.研究了在外加电场作用下,Na+迁移运动规律与IPMC变形过程特征,通过结果比较证明了所提出方法的正确性.更多还原

【Abstract】 A numerical technique is proposed to simulate the dynamic electro-mechanical properties of ionic polymer-metal composites(IPMC) using a finite element program ANSYS.The Runger-Kutta method is employed to solve the partial differential equation of ionic density which was incorporated into ANSYS by coding user-defined subroutines,and the mechanical bending resulting from the water molecules redistribution is simulated by building equivalent thermal expansion model.Using the proposed method,the ion movement and the electro-mechanical deformation behavior were predicted.Compared with those available open literatures,the numerical results show the validity of the present method.更多还原