Effects of toroidal transition on strength and stability of submarine's cone-cone connection structure
[Objectives] The cone-toroid-cone structure is a new type of structure to solve the problem of stress concentration at the joint of two conical shells with different angles in a pressure hull of submarine. The pupose of this paper is to discuss the effects of the cone-cone shell transition on its co...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Editorial Office of Chinese Journal of Ship Research
2020-06-01
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| Series: | Zhongguo Jianchuan Yanjiu |
| Subjects: | |
| Online Access: | http://html.rhhz.net/ZGJCYJ/html/2020-3-111.htm |
| _version_ | 1819045997338165248 |
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| author | JING Teng WU Fan ZHANG Er ZHANG Yuchen |
| author_facet | JING Teng WU Fan ZHANG Er ZHANG Yuchen |
| author_sort | JING Teng |
| collection | DOAJ |
| description | [Objectives] The cone-toroid-cone structure is a new type of structure to solve the problem of stress concentration at the joint of two conical shells with different angles in a pressure hull of submarine. The pupose of this paper is to discuss the effects of the cone-cone shell transition on its connection structure,as well as the feasibility of the cone-toroid-cone structure and applicable range of conical angle.[Methods] A series of ring-stittened cone-toroid-cone and cone-cone structural model are established using ANSYS finite element method. The typical stress and elastic stability of the two above mentioned transition sections at different cone angles are obtained using the models. Through comparative analysis, the influence of the toroidal transition on the mechanical properties of cone-cone structures with different angles is obtained.[Results] The results show that the greater the difference in conical angle between the left and right conical shells,the greater the effect of reducing peak stress using toroidal shells. When the conical angle different on both sides (<i>γ</i><sub>1</sub>-<i>γ</i><sub>2</sub> <10°) is satisfied,the significance of using an toroidal shell transition is smaller. When the conical angle is small,the instability of the two structures occurs in conical shells with a smaller transition section radius,and the stability of the cone-toroid-cone structure is better than that of the cone-cone structure. Structural instability occurs in conical shells with a larger radius. The stability of the cone-toroid-cone structure is consistent with that of the cone-cone structure.[Conclusions] The research results can provide references for the design and physical experiment of cone-cone connection structures. |
| first_indexed | 2024-12-21T10:37:28Z |
| format | Article |
| id | doaj.art-d3328f510a744d36abb5784384534d57 |
| institution | Directory Open Access Journal |
| issn | 1673-3185 1673-3185 |
| language | English |
| last_indexed | 2024-12-21T10:37:28Z |
| publishDate | 2020-06-01 |
| publisher | Editorial Office of Chinese Journal of Ship Research |
| record_format | Article |
| series | Zhongguo Jianchuan Yanjiu |
| spelling | doaj.art-d3328f510a744d36abb5784384534d572022-12-21T19:07:03ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31851673-31852020-06-01153111116,12210.19693/j.issn.1673-3185.016002020-3-111Effects of toroidal transition on strength and stability of submarine's cone-cone connection structureJING TengWU FanZHANG ErZHANG Yuchen[Objectives] The cone-toroid-cone structure is a new type of structure to solve the problem of stress concentration at the joint of two conical shells with different angles in a pressure hull of submarine. The pupose of this paper is to discuss the effects of the cone-cone shell transition on its connection structure,as well as the feasibility of the cone-toroid-cone structure and applicable range of conical angle.[Methods] A series of ring-stittened cone-toroid-cone and cone-cone structural model are established using ANSYS finite element method. The typical stress and elastic stability of the two above mentioned transition sections at different cone angles are obtained using the models. Through comparative analysis, the influence of the toroidal transition on the mechanical properties of cone-cone structures with different angles is obtained.[Results] The results show that the greater the difference in conical angle between the left and right conical shells,the greater the effect of reducing peak stress using toroidal shells. When the conical angle different on both sides (<i>γ</i><sub>1</sub>-<i>γ</i><sub>2</sub> <10°) is satisfied,the significance of using an toroidal shell transition is smaller. When the conical angle is small,the instability of the two structures occurs in conical shells with a smaller transition section radius,and the stability of the cone-toroid-cone structure is better than that of the cone-cone structure. Structural instability occurs in conical shells with a larger radius. The stability of the cone-toroid-cone structure is consistent with that of the cone-cone structure.[Conclusions] The research results can provide references for the design and physical experiment of cone-cone connection structures.http://html.rhhz.net/ZGJCYJ/html/2020-3-111.htmcone-toroid-conecone anglestrengthstabilitynumerical simulation |
| spellingShingle | JING Teng WU Fan ZHANG Er ZHANG Yuchen Effects of toroidal transition on strength and stability of submarine's cone-cone connection structure Zhongguo Jianchuan Yanjiu cone-toroid-cone cone angle strength stability numerical simulation |
| title | Effects of toroidal transition on strength and stability of submarine's cone-cone connection structure |
| title_full | Effects of toroidal transition on strength and stability of submarine's cone-cone connection structure |
| title_fullStr | Effects of toroidal transition on strength and stability of submarine's cone-cone connection structure |
| title_full_unstemmed | Effects of toroidal transition on strength and stability of submarine's cone-cone connection structure |
| title_short | Effects of toroidal transition on strength and stability of submarine's cone-cone connection structure |
| title_sort | effects of toroidal transition on strength and stability of submarine s cone cone connection structure |
| topic | cone-toroid-cone cone angle strength stability numerical simulation |
| url | http://html.rhhz.net/ZGJCYJ/html/2020-3-111.htm |
| work_keys_str_mv | AT jingteng effectsoftoroidaltransitiononstrengthandstabilityofsubmarinesconeconeconnectionstructure AT wufan effectsoftoroidaltransitiononstrengthandstabilityofsubmarinesconeconeconnectionstructure AT zhanger effectsoftoroidaltransitiononstrengthandstabilityofsubmarinesconeconeconnectionstructure AT zhangyuchen effectsoftoroidaltransitiononstrengthandstabilityofsubmarinesconeconeconnectionstructure |