Data-driven global sensitivity indices for the load-carrying capacity of large-diameter stiffened cylindrical shells
The influence of input parameters on the load-carrying capacity of the large-diameter stiffened cylindrical shell has not been satisfactory understood. To obtain the global sensitivity indices for the load-carrying capacity of large-diameter stiffened cylindrical shells, a novel data-driven sensitiv...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2022-04-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/16878132221090105 |
| _version_ | 1811303503594782720 |
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| author | Zhixiang Wang Yongjun Lei Dapeng Zhang Guanri Liu Jie Wang |
| author_facet | Zhixiang Wang Yongjun Lei Dapeng Zhang Guanri Liu Jie Wang |
| author_sort | Zhixiang Wang |
| collection | DOAJ |
| description | The influence of input parameters on the load-carrying capacity of the large-diameter stiffened cylindrical shell has not been satisfactory understood. To obtain the global sensitivity indices for the load-carrying capacity of large-diameter stiffened cylindrical shells, a novel data-driven sensitivity analysis method is presented for the efficient calculation of Sobol’s indices. In the work, the analytical expressions to compute Sobol’s indices are derived in detail based on the Radial Basis Function (RBF) metamodel. Then, the collapse mode of stiffened cylindrical shells with different sections of stringers are simulated, and the sensitivity of the load-carrying performance to geometric parameters are analyzed. The results show that for the considered stiffened cylindrical shell: (1) The coupled flexural-torsional induced deformation becomes the main factor leading to the overall collapse of the large-diameter and heavy-load stiffened cylindrical shells. (2) The flange thickness of stringers has the strongest influence on the load-bearing capacity, followed by the web thickness of stringers. (3) The interaction influences between stringers and other components in stiffened cylindrical shells are insignificant and negligible compared to the individual influence of stringers. |
| first_indexed | 2024-04-13T07:49:05Z |
| format | Article |
| id | doaj.art-727ef950a1464e699a53d4c200fd0cc4 |
| institution | Directory Open Access Journal |
| issn | 1687-8140 |
| language | English |
| last_indexed | 2024-04-13T07:49:05Z |
| publishDate | 2022-04-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-727ef950a1464e699a53d4c200fd0cc42022-12-22T02:55:36ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402022-04-011410.1177/16878132221090105Data-driven global sensitivity indices for the load-carrying capacity of large-diameter stiffened cylindrical shellsZhixiang Wang0Yongjun Lei1Dapeng Zhang2Guanri Liu3Jie Wang4Hunan Key Laboratory of Intelligent Planning and Simulation for Aerospace Missions, Changsha, ChinaHunan Key Laboratory of Intelligent Planning and Simulation for Aerospace Missions, Changsha, ChinaHunan Key Laboratory of Intelligent Planning and Simulation for Aerospace Missions, Changsha, ChinaBeijing Institute of Astronautical Systems Engineering, Beijing, ChinaBeijing Institute of Astronautical Systems Engineering, Beijing, ChinaThe influence of input parameters on the load-carrying capacity of the large-diameter stiffened cylindrical shell has not been satisfactory understood. To obtain the global sensitivity indices for the load-carrying capacity of large-diameter stiffened cylindrical shells, a novel data-driven sensitivity analysis method is presented for the efficient calculation of Sobol’s indices. In the work, the analytical expressions to compute Sobol’s indices are derived in detail based on the Radial Basis Function (RBF) metamodel. Then, the collapse mode of stiffened cylindrical shells with different sections of stringers are simulated, and the sensitivity of the load-carrying performance to geometric parameters are analyzed. The results show that for the considered stiffened cylindrical shell: (1) The coupled flexural-torsional induced deformation becomes the main factor leading to the overall collapse of the large-diameter and heavy-load stiffened cylindrical shells. (2) The flange thickness of stringers has the strongest influence on the load-bearing capacity, followed by the web thickness of stringers. (3) The interaction influences between stringers and other components in stiffened cylindrical shells are insignificant and negligible compared to the individual influence of stringers.https://doi.org/10.1177/16878132221090105 |
| spellingShingle | Zhixiang Wang Yongjun Lei Dapeng Zhang Guanri Liu Jie Wang Data-driven global sensitivity indices for the load-carrying capacity of large-diameter stiffened cylindrical shells Advances in Mechanical Engineering |
| title | Data-driven global sensitivity indices for the load-carrying capacity of large-diameter stiffened cylindrical shells |
| title_full | Data-driven global sensitivity indices for the load-carrying capacity of large-diameter stiffened cylindrical shells |
| title_fullStr | Data-driven global sensitivity indices for the load-carrying capacity of large-diameter stiffened cylindrical shells |
| title_full_unstemmed | Data-driven global sensitivity indices for the load-carrying capacity of large-diameter stiffened cylindrical shells |
| title_short | Data-driven global sensitivity indices for the load-carrying capacity of large-diameter stiffened cylindrical shells |
| title_sort | data driven global sensitivity indices for the load carrying capacity of large diameter stiffened cylindrical shells |
| url | https://doi.org/10.1177/16878132221090105 |
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