Multiobjective Optimization Design of Truss Antenna
During the design and manufacturing process of the truss antenna, the surface accuracy of the truss antenna is inherently affected by tolerance. An appropriate optimal design of the truss antenna structure is important to improve surface accuracy. In order to receive the optimal design of the truss...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/6125831 |
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| _version_ | 1832552937843326976 |
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| author | Di Wu Xiaofei Ma Jinbao Chen Chuanzhi Chen Jiang Zhao Kunyang Lin |
| author_facet | Di Wu Xiaofei Ma Jinbao Chen Chuanzhi Chen Jiang Zhao Kunyang Lin |
| author_sort | Di Wu |
| collection | DOAJ |
| description | During the design and manufacturing process of the truss antenna, the surface accuracy of the truss antenna is inherently affected by tolerance. An appropriate optimal design of the truss antenna structure is important to improve surface accuracy. In order to receive the optimal design of the truss structure, this paper adopts the multiobjective optimization algorithm based on an approximate model to optimize the tolerance model with random error. Firstly, considering the influence of the processing and assembly errors of the members on the surface accuracy of the structure, the equilibrium state equation of the truss is established by the principle of minimum potential energy. Then, the relationship between the tolerance and the surface accuracy is obtained by the Monte Carlo method. For improving the computing efficiency of the Monte Carlo method, an approximate model of the truss antenna unit is established, where the rod length tolerance is set as the design variable, and the truss surface accuracy and processing cost are set as the objective functions. Finally, tolerance optimization is carried out by using the multiobjective genetic algorithm. The results indicate that the Pareto solution is obtained with an error less than 10%. Moreover, a set of solutions of the tolerance are obtained which can meet different antenna design requirements. And the results show that the influence of the web rod is significantly greater than that of the bottom rod on the surface accuracy of the structure. |
| format | Article |
| id | doaj-art-b02d116323c547de9a2531c8b0638c13 |
| institution | Kabale University |
| issn | 1687-5974 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-b02d116323c547de9a2531c8b0638c132025-02-03T05:57:26ZengWileyInternational Journal of Aerospace Engineering1687-59742022-01-01202210.1155/2022/6125831Multiobjective Optimization Design of Truss AntennaDi Wu0Xiaofei Ma1Jinbao Chen2Chuanzhi Chen3Jiang Zhao4Kunyang Lin5College of AstronauticsCollege of AstronauticsCollege of AstronauticsCollege of AstronauticsXi’an Institute of Space Radio TechnologyXi’an Institute of Space Radio TechnologyDuring the design and manufacturing process of the truss antenna, the surface accuracy of the truss antenna is inherently affected by tolerance. An appropriate optimal design of the truss antenna structure is important to improve surface accuracy. In order to receive the optimal design of the truss structure, this paper adopts the multiobjective optimization algorithm based on an approximate model to optimize the tolerance model with random error. Firstly, considering the influence of the processing and assembly errors of the members on the surface accuracy of the structure, the equilibrium state equation of the truss is established by the principle of minimum potential energy. Then, the relationship between the tolerance and the surface accuracy is obtained by the Monte Carlo method. For improving the computing efficiency of the Monte Carlo method, an approximate model of the truss antenna unit is established, where the rod length tolerance is set as the design variable, and the truss surface accuracy and processing cost are set as the objective functions. Finally, tolerance optimization is carried out by using the multiobjective genetic algorithm. The results indicate that the Pareto solution is obtained with an error less than 10%. Moreover, a set of solutions of the tolerance are obtained which can meet different antenna design requirements. And the results show that the influence of the web rod is significantly greater than that of the bottom rod on the surface accuracy of the structure.http://dx.doi.org/10.1155/2022/6125831 |
| spellingShingle | Di Wu Xiaofei Ma Jinbao Chen Chuanzhi Chen Jiang Zhao Kunyang Lin Multiobjective Optimization Design of Truss Antenna International Journal of Aerospace Engineering |
| title | Multiobjective Optimization Design of Truss Antenna |
| title_full | Multiobjective Optimization Design of Truss Antenna |
| title_fullStr | Multiobjective Optimization Design of Truss Antenna |
| title_full_unstemmed | Multiobjective Optimization Design of Truss Antenna |
| title_short | Multiobjective Optimization Design of Truss Antenna |
| title_sort | multiobjective optimization design of truss antenna |
| url | http://dx.doi.org/10.1155/2022/6125831 |
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