Journal
AIAA JOURNAL
Volume 51, Issue 11, Pages 2656-2664Publisher
AMER INST AERONAUTICS ASTRONAUTICS
DOI: 10.2514/1.J052183
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Robust topology optimization has long been considered computationally intractable as it combines two highly expensive computational strategies. This paper considers simultaneous minimization of expectancy and variance of compliance in the presence of uncertainties in loading magnitude, using exact formulations and analytically derived sensitivities. It shows that only a few additional load cases are required, which scales in polynomial time with the number of uncertain load cases. The approach is implemented using the level set topology optimization method. Shape sensitivities are derived using the adjoint method. Several examples are used to investigate the effect of including variance in robust compliance optimization.
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