TY - JOUR
T1 - Topology optimization of compliant mechanisms under transient thermal conditions
AU - Granlund, Gunnar
AU - Wallin, Mathias
AU - Günther-Hanssen, Olov
AU - Tortorelli, Daniel
AU - Watts, Seth
PY - 2024/1/1
Y1 - 2024/1/1
N2 - 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.
AB - 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.
U2 - 10.1016/j.cma.2023.116478
DO - 10.1016/j.cma.2023.116478
M3 - Article
SN - 0045-7825
VL - 418
JO - Computer Methods in Applied Mechanics and Engineering
JF - Computer Methods in Applied Mechanics and Engineering
M1 - 116478
ER -