Research on Computational Method of Structure Steady State Response

Common Finite-Element-Method (FEM) structure program and commercial software are not suitable for the solving steady state response of magnitude and location of loading under the equally periodical circumstance. Based on FEM software Ansys and corresponding modal analysis, transient response solution of structure is adopted by modal superposition method. The magnitude and the position of loading are cyclically synchronized by using the APDL circulate program. The solution of steady state response is also realized by adopting a external judging program. Steady state response analysis for a disc structure is illustrated here and its result is of the same precision compared with that of the FEM structural program method.