Gumbel-Softmax reparameterization lets frame designs with discrete catalog choices be optimized by gradient descent together with continuous variables, cutting required structural solves by orders of magnitude in the tested cases.
A low order, torsion deformable spatial beam element based on the absolute nodal coordinate formulation and bishop frame,
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Optimal design of frame structures with mixed categorical and continuous design variables using the Gumbel-Softmax method
Gumbel-Softmax reparameterization lets frame designs with discrete catalog choices be optimized by gradient descent together with continuous variables, cutting required structural solves by orders of magnitude in the tested cases.