| Complex harmonic responses are of interest in the dynamic analysis of damped mechanical and structural systems subjected to steady-state oscillatory excitation. Complex harmonic response system consider the dynamic equation of motion with the non-classical damping taken into account. So that it’s result has higher accuracy and closer to practical application case compared to non-damped or classical damping system.The development and software development of complex modal analysis and harmonic steady state response are introduced, and discusses the development environment and software needed for implementation of complex steady response analysis virtual test platform, focusing on the conjunction of Nastran, Intel MKL and Hoops with the Visual Studio 2005 development environment.Introduces the needs analysis of modules of the system and algorithmic process of each module, including model display, modal synthesis, frequency response function calculation and complex steady-state response analysis. Introduces the design of data structure of the complex steady-state response analysis module, and the detailed design of each module. Develop and implement the complex steady-state response analysis system based on Nastran solver and DMAP secondary development language.Finally, an example model was tested, and the results of the system were compared with the commercial software Optistruct to verify the correctness of the complex steady-state response analysis system in solving the problem of steady-state response of non-classical damping system subjected to steady-state oscillatory excitation. |
