Efficient transient topology optimization through dynamic substructuring

Abstract eng:
This paper presents an efficient topology optimization methodology for dynamic structural design problems. The key to the method is to utilize dynamic substructering, or component mode synthesis, i.e. the Craig-Bampton reduction method to speed up the transient analysis. The dynamic substructuring concept is used for both the forward (the state equation) and the backward (adjoint equation). The developed optimization scheme is demonstrated on design problems for linear elastic Mindlin plates subject to impact loads, where the goal is to minimize the deflection in a specified region.

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