Surface Adjustment Method Based on Fuzzy Theory for Cable Net Structures under Multi-Uncertainties
Because of manufacturing errors, measuring errors, and unpredictable service environment, the cable net structure to be further adjusted is in an uncertainty state. In this paper, the uncertain factors including elastic deformation, thermal deformation, and measurement uncertainties are considered a...
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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/10.1155/2022/3590103 |
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| _version_ | 1849406934467215360 |
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| author | Tuanjie Li Li Yan Zhiyang Shi Zijie Zeng Yaqiong Tang |
| author_facet | Tuanjie Li Li Yan Zhiyang Shi Zijie Zeng Yaqiong Tang |
| author_sort | Tuanjie Li |
| collection | DOAJ |
| description | Because of manufacturing errors, measuring errors, and unpredictable service environment, the cable net structure to be further adjusted is in an uncertainty state. In this paper, the uncertain factors including elastic deformation, thermal deformation, and measurement uncertainties are considered as fuzzy variables, which are equivalent into fuzzy tensions to simplify calculation. A fuzzy force density method is developed for accuracy analysis of the cable net structures under multi-uncertainties, and an optimization model is developed for surface adjustment. The above method is applied to numerical model adjustment of circular truss cable net structure. The results show that the adjusted surface accuracy is significantly enhanced and its fuzziness is concentrated compared with the initial surface accuracy, which verify the validity of the proposed method. |
| format | Article |
| id | doaj-art-50ffff1198424e06b6997876a58fe2cc |
| 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-50ffff1198424e06b6997876a58fe2cc2025-08-20T03:36:14ZengWileyInternational Journal of Aerospace Engineering1687-59742022-01-01202210.1155/2022/3590103Surface Adjustment Method Based on Fuzzy Theory for Cable Net Structures under Multi-UncertaintiesTuanjie Li0Li Yan1Zhiyang Shi2Zijie Zeng3Yaqiong Tang4School of Mechano-Electronic EngineeringAerospace System Engineering ShanghaiSchool of Mechano-Electronic EngineeringSchool of Mechano-Electronic EngineeringSchool of Mechano-Electronic EngineeringBecause of manufacturing errors, measuring errors, and unpredictable service environment, the cable net structure to be further adjusted is in an uncertainty state. In this paper, the uncertain factors including elastic deformation, thermal deformation, and measurement uncertainties are considered as fuzzy variables, which are equivalent into fuzzy tensions to simplify calculation. A fuzzy force density method is developed for accuracy analysis of the cable net structures under multi-uncertainties, and an optimization model is developed for surface adjustment. The above method is applied to numerical model adjustment of circular truss cable net structure. The results show that the adjusted surface accuracy is significantly enhanced and its fuzziness is concentrated compared with the initial surface accuracy, which verify the validity of the proposed method.http://dx.doi.org/10.1155/2022/3590103 |
| spellingShingle | Tuanjie Li Li Yan Zhiyang Shi Zijie Zeng Yaqiong Tang Surface Adjustment Method Based on Fuzzy Theory for Cable Net Structures under Multi-Uncertainties International Journal of Aerospace Engineering |
| title | Surface Adjustment Method Based on Fuzzy Theory for Cable Net Structures under Multi-Uncertainties |
| title_full | Surface Adjustment Method Based on Fuzzy Theory for Cable Net Structures under Multi-Uncertainties |
| title_fullStr | Surface Adjustment Method Based on Fuzzy Theory for Cable Net Structures under Multi-Uncertainties |
| title_full_unstemmed | Surface Adjustment Method Based on Fuzzy Theory for Cable Net Structures under Multi-Uncertainties |
| title_short | Surface Adjustment Method Based on Fuzzy Theory for Cable Net Structures under Multi-Uncertainties |
| title_sort | surface adjustment method based on fuzzy theory for cable net structures under multi uncertainties |
| url | http://dx.doi.org/10.1155/2022/3590103 |
| work_keys_str_mv | AT tuanjieli surfaceadjustmentmethodbasedonfuzzytheoryforcablenetstructuresundermultiuncertainties AT liyan surfaceadjustmentmethodbasedonfuzzytheoryforcablenetstructuresundermultiuncertainties AT zhiyangshi surfaceadjustmentmethodbasedonfuzzytheoryforcablenetstructuresundermultiuncertainties AT zijiezeng surfaceadjustmentmethodbasedonfuzzytheoryforcablenetstructuresundermultiuncertainties AT yaqiongtang surfaceadjustmentmethodbasedonfuzzytheoryforcablenetstructuresundermultiuncertainties |