Topology optimization of compliant mechanisms under transient thermal conditions
Gunnar Granlund, Mathias Wallin, Olov Günther-Hanssen, Daniel A. Tortorelli, Seth Watts
Abstract
This work considers multi-material topology optimization of compliant mechanisms under transient thermal and quasi-static mechanical conditions wherein thermally actuated devices are optimized for different operating conditions. The materials are modeled using finite strain thermo-hyperelasticity and a two way coupling between the energy balance and equilibrium equations is investigated. The design updates are generated from the gradient-based method of moving asymptotes optimizer and the sensitivities are computed using the time dependent adjoint sensitivity analysis. Results show the impact of designing for short versus long actuation times.
Topics & Concepts
Topology optimizationAsymptoteHyperelastic materialTransient (computer programming)Compliant mechanismSensitivity (control systems)Topology (electrical circuits)Finite element methodWork (physics)ThermalCoupling (piping)MechanicsControl theory (sociology)Computer scienceMaterials scienceStructural engineeringMechanical engineeringMathematicsPhysicsEngineeringMathematical analysisThermodynamicsElectronic engineeringControl (management)Artificial intelligenceOperating systemCombinatoricsTopology Optimization in EngineeringPiezoelectric Actuators and ControlComposite Structure Analysis and Optimization