On the Topology Optimization of Elastic Supporting Structures under Thermomechanical Loads
This paper is to present a thermomechanical topology optimization formulation. By designing structures that support specific nondesignable domain, optimization is to suppress the stress level in the nondesignable domain and maintain global stiffness simultaneously. A global stress measure based on p...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/7372603 |
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| _version_ | 1850174859875713024 |
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| author | Jie Hou Ji-Hong Zhu Qing Li |
| author_facet | Jie Hou Ji-Hong Zhu Qing Li |
| author_sort | Jie Hou |
| collection | DOAJ |
| description | This paper is to present a thermomechanical topology optimization formulation. By designing structures that support specific nondesignable domain, optimization is to suppress the stress level in the nondesignable domain and maintain global stiffness simultaneously. A global stress measure based on p-norm function is then utilized to reduce the number of stress constraints in topology optimization. Sensitivity analysis employs adjoint method to derive the global stress measure with respect to the topological pseudodensity variables. Some particular behaviors in thermomechanical topology optimization of elastic supports, such as the influence of different thermomechanical loads and the existence of intermediate material, are also analyzed numerically. Finally, examples of elastic supports on a cantilever beam and a nozzle flap under different thermomechanical loads are tested with reasonable optimized design obtained. |
| format | Article |
| id | doaj-art-ca82a6dcd72d47978a44f55242830d6a |
| institution | OA Journals |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-ca82a6dcd72d47978a44f55242830d6a2025-08-20T02:19:34ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742016-01-01201610.1155/2016/73726037372603On the Topology Optimization of Elastic Supporting Structures under Thermomechanical LoadsJie Hou0Ji-Hong Zhu1Qing Li2Engineering Simulation and Aerospace Computing (ESAC), The Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Northwestern Polytechnical University, Xi’an 710072, ChinaEngineering Simulation and Aerospace Computing (ESAC), The Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Northwestern Polytechnical University, Xi’an 710072, ChinaEngineering Simulation and Aerospace Computing (ESAC), The Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Northwestern Polytechnical University, Xi’an 710072, ChinaThis paper is to present a thermomechanical topology optimization formulation. By designing structures that support specific nondesignable domain, optimization is to suppress the stress level in the nondesignable domain and maintain global stiffness simultaneously. A global stress measure based on p-norm function is then utilized to reduce the number of stress constraints in topology optimization. Sensitivity analysis employs adjoint method to derive the global stress measure with respect to the topological pseudodensity variables. Some particular behaviors in thermomechanical topology optimization of elastic supports, such as the influence of different thermomechanical loads and the existence of intermediate material, are also analyzed numerically. Finally, examples of elastic supports on a cantilever beam and a nozzle flap under different thermomechanical loads are tested with reasonable optimized design obtained.http://dx.doi.org/10.1155/2016/7372603 |
| spellingShingle | Jie Hou Ji-Hong Zhu Qing Li On the Topology Optimization of Elastic Supporting Structures under Thermomechanical Loads International Journal of Aerospace Engineering |
| title | On the Topology Optimization of Elastic Supporting Structures under Thermomechanical Loads |
| title_full | On the Topology Optimization of Elastic Supporting Structures under Thermomechanical Loads |
| title_fullStr | On the Topology Optimization of Elastic Supporting Structures under Thermomechanical Loads |
| title_full_unstemmed | On the Topology Optimization of Elastic Supporting Structures under Thermomechanical Loads |
| title_short | On the Topology Optimization of Elastic Supporting Structures under Thermomechanical Loads |
| title_sort | on the topology optimization of elastic supporting structures under thermomechanical loads |
| url | http://dx.doi.org/10.1155/2016/7372603 |
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