Topology optimization of compliant mechanisms under transient thermal conditions
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.
- Authors:
-
- Lund Univ. (Sweden)
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States). Center for Design and Optimization; Univ. of Illinois at Urbana-Champaign, IL (United States)
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States). Center for Design and Optimization
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 2248144
- Report Number(s):
- LLNL-JRNL-849277
Journal ID: ISSN 0045-7825; 1074842
- Grant/Contract Number:
- AC52-07NA27344
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Computer Methods in Applied Mechanics and Engineering
- Additional Journal Information:
- Journal Volume: 418; Journal Issue: A; Journal ID: ISSN 0045-7825
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; Topology optimization; Finite strain thermo-hyperelasticity; Transients; Multi-material; Compliant mechanisms; Thermally actuated devices
Citation Formats
Granlund, Gunnar, Wallin, Mathias, Günther-Hanssen, Olov, Tortorelli, Daniel, and Watts, Seth. Topology optimization of compliant mechanisms under transient thermal conditions. United States: N. p., 2023.
Web. doi:10.1016/j.cma.2023.116478.
Granlund, Gunnar, Wallin, Mathias, Günther-Hanssen, Olov, Tortorelli, Daniel, & Watts, Seth. Topology optimization of compliant mechanisms under transient thermal conditions. United States. https://doi.org/10.1016/j.cma.2023.116478
Granlund, Gunnar, Wallin, Mathias, Günther-Hanssen, Olov, Tortorelli, Daniel, and Watts, Seth. Tue .
"Topology optimization of compliant mechanisms under transient thermal conditions". United States. https://doi.org/10.1016/j.cma.2023.116478. https://www.osti.gov/servlets/purl/2248144.
@article{osti_2248144,
title = {Topology optimization of compliant mechanisms under transient thermal conditions},
author = {Granlund, Gunnar and Wallin, Mathias and Günther-Hanssen, Olov and Tortorelli, Daniel and Watts, Seth},
abstractNote = {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.},
doi = {10.1016/j.cma.2023.116478},
journal = {Computer Methods in Applied Mechanics and Engineering},
number = A,
volume = 418,
place = {United States},
year = {Tue Oct 03 00:00:00 EDT 2023},
month = {Tue Oct 03 00:00:00 EDT 2023}
}
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