Topology optimization of transient thermo-mechanical problems using multiple materials
(2020) In ISRN LUTFD2/TFHF-20/TFHF-5239-SE(1-67) FHLM01 20201Department of Construction Sciences
Solid Mechanics
- Abstract
- Topology optimization is a powerful method for finding optimized designs for a variety of problems. In this work, thermo-mechanical problems are studied in particular and solved under transient conductive heat transfer using 2 materials plus void in the optimization.
In the first part of the thesis, the theoretical background for a generic transient thermo-mechanical topology optimization problem is introduced. The thermo-mechanical field is modeled using have a one-way coupling between the temperature field to the displacement field and is solved with the Finite Element Method for small deformations.
To render designs with a minimal length scale and clear boundaries, design
filtering is used together with a robust formulation, which is... (More) - Topology optimization is a powerful method for finding optimized designs for a variety of problems. In this work, thermo-mechanical problems are studied in particular and solved under transient conductive heat transfer using 2 materials plus void in the optimization.
In the first part of the thesis, the theoretical background for a generic transient thermo-mechanical topology optimization problem is introduced. The thermo-mechanical field is modeled using have a one-way coupling between the temperature field to the displacement field and is solved with the Finite Element Method for small deformations.
To render designs with a minimal length scale and clear boundaries, design
filtering is used together with a robust formulation, which is reliant on Heaviside projections.
The second part goes more into the details of the implementation in Matlab and the test cases used as well as a real-world application: optimizing a thermally actuated disassembly mechanism.
The results are verified against external previous results and are similar in the features.
The optimal design for the real-world application is from a topology optimization perspective satisfactory but shows very small displacements under the thermal load. As future work, large deformations are suggested to be implemented. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9030770
- author
- Günther-Hanssen, Olov LU
- supervisor
- organization
- course
- FHLM01 20201
- year
- 2020
- type
- H3 - Professional qualifications (4 Years - )
- subject
- keywords
- topology optimization, transient heat transfer, multi-material, thermal actuators
- publication/series
- ISRN LUTFD2/TFHF-20/TFHF-5239-SE(1-67)
- report number
- TFHF-5239
- language
- English
- id
- 9030770
- date added to LUP
- 2020-10-13 15:05:48
- date last changed
- 2020-10-13 15:05:48
@misc{9030770, abstract = {{Topology optimization is a powerful method for finding optimized designs for a variety of problems. In this work, thermo-mechanical problems are studied in particular and solved under transient conductive heat transfer using 2 materials plus void in the optimization. In the first part of the thesis, the theoretical background for a generic transient thermo-mechanical topology optimization problem is introduced. The thermo-mechanical field is modeled using have a one-way coupling between the temperature field to the displacement field and is solved with the Finite Element Method for small deformations. To render designs with a minimal length scale and clear boundaries, design filtering is used together with a robust formulation, which is reliant on Heaviside projections. The second part goes more into the details of the implementation in Matlab and the test cases used as well as a real-world application: optimizing a thermally actuated disassembly mechanism. The results are verified against external previous results and are similar in the features. The optimal design for the real-world application is from a topology optimization perspective satisfactory but shows very small displacements under the thermal load. As future work, large deformations are suggested to be implemented.}}, author = {{Günther-Hanssen, Olov}}, language = {{eng}}, note = {{Student Paper}}, series = {{ISRN LUTFD2/TFHF-20/TFHF-5239-SE(1-67)}}, title = {{Topology optimization of transient thermo-mechanical problems using multiple materials}}, year = {{2020}}, }