Constraints https://www.lsoptsupport.com/examples/subpages/ansa-1/copy_of_parameters https://www.lsoptsupport.com/@@site-logo/LS-Opt-Support-Logo480x80.png Constraints Add Constraints. Select the Constraints tab. From Responses select mass and displacement as the Optimization constraints. Set bounds for Constraints. Select Set Upper Bound for mass at 1,8. Select Set Upper Bound for displacement at 241.