Influencing factors analyses and matching design of ultimate bearing capacity of external pressure tank
ObjectivesThis paper aims to discuss the relationship between the ultimate bearing capacity of a pressure hull and pressure tank under the same strength margin, and obtain a matching design with the equivalent ultimate bearing capacity and strength margins accordingly. MethodsTo this end, a typical...
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| Format: | Article |
| Language: | English |
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Editorial Office of Chinese Journal of Ship Research
2023-08-01
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| Series: | Zhongguo Jianchuan Yanjiu |
| Subjects: | |
| Online Access: | http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.02397 |
| _version_ | 1827824609499545600 |
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| author | Dewen TANG Jun LIU Yuansheng CHENG |
| author_facet | Dewen TANG Jun LIU Yuansheng CHENG |
| author_sort | Dewen TANG |
| collection | DOAJ |
| description | ObjectivesThis paper aims to discuss the relationship between the ultimate bearing capacity of a pressure hull and pressure tank under the same strength margin, and obtain a matching design with the equivalent ultimate bearing capacity and strength margins accordingly. MethodsTo this end, a typical external pressure tank is taken as the research object. On the basis of evaluating the stability and ultimate bearing capacity of the initial structural scheme, the influences of the thicknesses of the pressure tank shell, solid floor and transverse bulkhead on the ultimate bearing capacity are studied. The initial scheme is then adjusted to obtain a scheme with the equivalent strength margins of the pressure hull and pressure tank. In this context, the relationship between the ultimate bearing capacity of the pressure hull and pressure tank is discussed. By strengthening the pressure hull to match the ultimate bearing capacities of the pressure tank and pressure hull, the corresponding strength margins are obtained. ResultsThe results show that thinning the pressure tank shell by 30%, solid floor shell by 33.3% and transverse bulkhead shell by 30% reduces the ultimate bearing capacity of the tank by 16.5%, 36.4% and 0.17% respectively. ConclusionsAs further analyses show, under the condition of the same strength margin, the ultimate bearing capacity of the pressure hull is much lower than that of the pressure tank. When the strength margin of the pressure tank is about 25% and that of the pressure hull is about 40%, the ultimate bearing capacities of the pressure hull and pressure tank are roughly the same. |
| first_indexed | 2024-03-12T02:28:47Z |
| format | Article |
| id | doaj.art-34c1912a5f9e4ee0bdb1f0d36079911e |
| institution | Directory Open Access Journal |
| issn | 1673-3185 |
| language | English |
| last_indexed | 2024-03-12T02:28:47Z |
| publishDate | 2023-08-01 |
| publisher | Editorial Office of Chinese Journal of Ship Research |
| record_format | Article |
| series | Zhongguo Jianchuan Yanjiu |
| spelling | doaj.art-34c1912a5f9e4ee0bdb1f0d36079911e2023-09-05T09:18:25ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31852023-08-0118425125710.19693/j.issn.1673-3185.02397ZG2397Influencing factors analyses and matching design of ultimate bearing capacity of external pressure tankDewen TANG0Jun LIU1Yuansheng CHENG2School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaObjectivesThis paper aims to discuss the relationship between the ultimate bearing capacity of a pressure hull and pressure tank under the same strength margin, and obtain a matching design with the equivalent ultimate bearing capacity and strength margins accordingly. MethodsTo this end, a typical external pressure tank is taken as the research object. On the basis of evaluating the stability and ultimate bearing capacity of the initial structural scheme, the influences of the thicknesses of the pressure tank shell, solid floor and transverse bulkhead on the ultimate bearing capacity are studied. The initial scheme is then adjusted to obtain a scheme with the equivalent strength margins of the pressure hull and pressure tank. In this context, the relationship between the ultimate bearing capacity of the pressure hull and pressure tank is discussed. By strengthening the pressure hull to match the ultimate bearing capacities of the pressure tank and pressure hull, the corresponding strength margins are obtained. ResultsThe results show that thinning the pressure tank shell by 30%, solid floor shell by 33.3% and transverse bulkhead shell by 30% reduces the ultimate bearing capacity of the tank by 16.5%, 36.4% and 0.17% respectively. ConclusionsAs further analyses show, under the condition of the same strength margin, the ultimate bearing capacity of the pressure hull is much lower than that of the pressure tank. When the strength margin of the pressure tank is about 25% and that of the pressure hull is about 40%, the ultimate bearing capacities of the pressure hull and pressure tank are roughly the same.http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.02397external pressure tankpressure hullultimate bearing capacitymatching design |
| spellingShingle | Dewen TANG Jun LIU Yuansheng CHENG Influencing factors analyses and matching design of ultimate bearing capacity of external pressure tank Zhongguo Jianchuan Yanjiu external pressure tank pressure hull ultimate bearing capacity matching design |
| title | Influencing factors analyses and matching design of ultimate bearing capacity of external pressure tank |
| title_full | Influencing factors analyses and matching design of ultimate bearing capacity of external pressure tank |
| title_fullStr | Influencing factors analyses and matching design of ultimate bearing capacity of external pressure tank |
| title_full_unstemmed | Influencing factors analyses and matching design of ultimate bearing capacity of external pressure tank |
| title_short | Influencing factors analyses and matching design of ultimate bearing capacity of external pressure tank |
| title_sort | influencing factors analyses and matching design of ultimate bearing capacity of external pressure tank |
| topic | external pressure tank pressure hull ultimate bearing capacity matching design |
| url | http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.02397 |
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