Stabilization of _ABS Design Responses

Optimization setups with constraints on _ABS design responses might be unstable in terms of convergence behavior.

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OPT_PARAM

Stabilization for DISP_ABS Constraints for Topology Optimization

For optimization with minimize volume as objective and DISP_ABS design responses in constraints, it might happen that the resulting structure disappears or contains a large amount of intermediate densities as in the image below:



Using the OPTION command DISP_ABS_STABILIZATION=ON, the convergence of the optimization becomes more stable and results in a clear structure.