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Topology optimization of compliant mechanisms under transient thermal conditions

Granlund, Gunnar LU orcid ; Wallin, Mathias LU ; Günther-Hanssen, Olov ; Tortorelli, Daniel and Watts, Seth (2024) In Computer Methods in Applied Mechanics and Engineering 418.
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.
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Computer Methods in Applied Mechanics and Engineering
volume
418
article number
116478
publisher
Elsevier
external identifiers
  • scopus:85172737042
ISSN
0045-7825
DOI
10.1016/j.cma.2023.116478
language
English
LU publication?
yes
id
784beb3b-8fd7-4a11-b2df-8b1fc2111d72
date added to LUP
2023-10-04 16:11:22
date last changed
2024-02-01 15:15:01
@article{784beb3b-8fd7-4a11-b2df-8b1fc2111d72,
  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.}},
  author       = {{Granlund, Gunnar and Wallin, Mathias and Günther-Hanssen, Olov and Tortorelli, Daniel and Watts, Seth}},
  issn         = {{0045-7825}},
  language     = {{eng}},
  month        = {{01}},
  publisher    = {{Elsevier}},
  series       = {{Computer Methods in Applied Mechanics and Engineering}},
  title        = {{Topology optimization of compliant mechanisms under transient thermal conditions}},
  url          = {{http://dx.doi.org/10.1016/j.cma.2023.116478}},
  doi          = {{10.1016/j.cma.2023.116478}},
  volume       = {{418}},
  year         = {{2024}},
}