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Abstract

Enhanced global design variables used in structural topology optimization are disclosed. FEA model of a product's initial candidate design along with design objective and constraint, and initial global design variables are received. Field design variables are then initialized. Simulated structural responses including computed IED distribution and design constraints and objectives of the product are obtained by performing a time-marching simulation of the impact event using the FEA model. New values of global design variables are computed based on computed design constraints and objectives, A target IED distribution defined by the sum of a set of mathematical functions with each function scaled by a corresponding global design variable for next candidate design is established. Field design variables are then updated using the differences of the target IED distribution and the computed IED distribution. Simulated structural responses are obtained until the current candidate design is deemed to be optimal.

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First Claim