Altair OptiStruct OptiStruct is an award-winning CAE technology for conceptual design synthesis and structural optimization. OptiStruct is an award-winning finite-element based technology for conceptual design synthesis and structural optimization. OptiStruct helps engineers and designers rapidly develop lightweight, structurally efficient designs by creating innovative concepts. By predicting optimal shapes of structures early in the design process using topology optimization methods, OptiStruct facilitates an analysis-driven design process that results in more efficient designs in shorter design cycle times. As the design process advances, OptiStruct's powerful shape and size optimization capabilities can be applied to further improve design performance. Using highly advanced optimization algorithms, OptiStruct can solve the most complex optimization problems with thousands of design variables in a short period of time.