基于ANSYS下的流固耦合计算和二次开发

Solution of Fluid-structure Coupling Problem Based on ANSYS and Redevelop

通过使用ANSYS参数化设计语言(APDL)提取刚度矩阵、质量矩阵和阻尼矩阵,然后用数值方法进行二次开发,提供了一个求解声学流固耦合问题的方法,并对已有软件ANSYS求解声学流固耦合问题的方法进行了改善。考虑了声波在传播中的能量耗散,即空气的粘滞性因素影响,最后将此方法应用到人耳模型中,计算结果证明了该方法的正确性。

In this paper, the stiffness matrix, mass matrix, damping matrix are taken by using ANSYS Parametric Design Language（ApDL）, then the program with the numerical methods is redeveloped. A solution is given for solving the acoustics fluid-structure coupling problem, which can improve the method of solving acoustics fluid-structure coupling problem by ANSYS, the dissipation of sound wave propagation, which is the viscous dissipation of air is considered. In the end, the ear modal is solved by using this method. The results indicate the validity of this method.