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Grid sensitivity analysis. (English) Zbl 0734.73072

Summary: This paper presents a method to compute the sensitivities of displacement and natural frequencies to the changes in grid locations. The sensitivities are computed within MSC/NASTRAN using the semi-analytical method via a DMAP program. New software was developed to assist in the selection of design variables and plot the spatial variation of the sensitivities on the finite element model. Two example problems demonstrate the technique.

MSC:

74S05 Finite element methods applied to problems in solid mechanics
74P99 Optimization problems in solid mechanics

Software:

NASTRAN
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