Research on calculation method of structural steady-state response effected by the variational recurrent load

This paper aims to solve the problem that finite element structure program and commercial software can not solve complex structure steady-response. It used ANSYS working as a platform to analyze modes of objects, then solved transient response with mode superposition and finally succeeded in load and loading position changing periodically by using APDL loop program. It also succeeded in external judgment of displacement response by using self-compiling programm, and solving structure steady-response become possible. A case study of disc, compared to the method used herein and the finite element structure program, the former can get the same accuracy. And it has the same effectiveness while used in related projects. The method can also be applied in other structure steady-response solution.