复模态稳态响应虚拟实验平台开发*

摘要

Discuss the theory and high‐accuracy algorithm of complex steady response analysis that consider the influ‐ence of non‐classical damping on the dynamic equation of motion .The system is based on the conjunction of Nastran ,Inter MKL and Hoops with the Visual Studio 2005 development environment .Then an example is used to compare the analytic re‐sult of the platform with the commercial software Optistruct to verify the effectiveness of the platform .%讨论了复模态稳态响应求解的基本理论与相关算法，实现了虚拟实验平台稳态响应求解系统。该系统考虑了非经典阻尼对实际运动方程的影响，计算结果精度更高，且更贴近实际工程应用中的情况。基于VS2005开发环境，调用Intel MKL与Hoops图形显示，使用Nastran求解器DMAP二次开发语言研制开发。通过算例对求解系统进行了测试，并与Optistruct的计算结果进行对比，验证了系统在求解非经典阻尼系统在受谐波激励的稳态响应时的有效性。