Response characteristics of hull girder under the combined action of wave and underwater explosion bubble pulsation load
ObjectivesDuring the mission, the ship may be simultaneously subjected to the combined wave load and underwater explosion bubble pulsation load, resulting in the "superposition effect" of hull response and the loss of total strength of the ship. Therefore, it is necessary to explore the dy...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Editorial Office of Chinese Journal of Ship Research
2023-02-01
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| Series: | Zhongguo Jianchuan Yanjiu |
| Subjects: | |
| Online Access: | http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.02550 |
| _version_ | 1797871295786909696 |
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| author | Jinzhu ZHAI Qiuqiu LI Xiangshao KONG Hongchang ZHOU Weiguo WU |
| author_facet | Jinzhu ZHAI Qiuqiu LI Xiangshao KONG Hongchang ZHOU Weiguo WU |
| author_sort | Jinzhu ZHAI |
| collection | DOAJ |
| description | ObjectivesDuring the mission, the ship may be simultaneously subjected to the combined wave load and underwater explosion bubble pulsation load, resulting in the "superposition effect" of hull response and the loss of total strength of the ship. Therefore, it is necessary to explore the dynamic response law of hull girder under the combined action of above-mentioned loads. MethodsFirst, a simplified hull girder model is established by theoretical analysis, and the bubble pulsation load of underwater explosion and wave load are solved. Then, based on the Hamilton Principle, the differential equations of motion of hull girder at both free ends subjected to the two loads are derived separately and jointly. Finally, based on the solution of the motion differential equation, the hull girder's free vibration response and the simplified model's motion response under the three working conditions of external load combination are analyzed. ResultsThe results show that under the combined action of the two loads, the motion response of the hull girder is 15% larger than the linear superposition of the motion response of the two loads alone. ConclusionsThe research done can provide a reference for developing an algorithm to analyze the motion response of ship structures under combined loads. |
| first_indexed | 2024-04-10T00:41:41Z |
| format | Article |
| id | doaj.art-526fbe9919d3425d879b8092d88b0978 |
| institution | Directory Open Access Journal |
| issn | 1673-3185 |
| language | English |
| last_indexed | 2024-04-10T00:41:41Z |
| publishDate | 2023-02-01 |
| publisher | Editorial Office of Chinese Journal of Ship Research |
| record_format | Article |
| series | Zhongguo Jianchuan Yanjiu |
| spelling | doaj.art-526fbe9919d3425d879b8092d88b09782023-03-14T05:44:46ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31852023-02-0118120521210.19693/j.issn.1673-3185.02550ZG2550Response characteristics of hull girder under the combined action of wave and underwater explosion bubble pulsation loadJinzhu ZHAI0Qiuqiu LI1Xiangshao KONG2Hongchang ZHOU3Weiguo WU4Green & Smart River-Sea-Going Ship Cruise and Yacht Research Center, Wuhan University of Technology, Wuhan 430063, ChinaCenter for Innovation-Driven Development, National Development and Reform Commission, Beijing 100045, ChinaGreen & Smart River-Sea-Going Ship Cruise and Yacht Research Center, Wuhan University of Technology, Wuhan 430063, ChinaSchool of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, ChinaGreen & Smart River-Sea-Going Ship Cruise and Yacht Research Center, Wuhan University of Technology, Wuhan 430063, ChinaObjectivesDuring the mission, the ship may be simultaneously subjected to the combined wave load and underwater explosion bubble pulsation load, resulting in the "superposition effect" of hull response and the loss of total strength of the ship. Therefore, it is necessary to explore the dynamic response law of hull girder under the combined action of above-mentioned loads. MethodsFirst, a simplified hull girder model is established by theoretical analysis, and the bubble pulsation load of underwater explosion and wave load are solved. Then, based on the Hamilton Principle, the differential equations of motion of hull girder at both free ends subjected to the two loads are derived separately and jointly. Finally, based on the solution of the motion differential equation, the hull girder's free vibration response and the simplified model's motion response under the three working conditions of external load combination are analyzed. ResultsThe results show that under the combined action of the two loads, the motion response of the hull girder is 15% larger than the linear superposition of the motion response of the two loads alone. ConclusionsThe research done can provide a reference for developing an algorithm to analyze the motion response of ship structures under combined loads.http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.02550hull girderunderwater explosionbubble pulsation loadwave loadcombined actionmotion response |
| spellingShingle | Jinzhu ZHAI Qiuqiu LI Xiangshao KONG Hongchang ZHOU Weiguo WU Response characteristics of hull girder under the combined action of wave and underwater explosion bubble pulsation load Zhongguo Jianchuan Yanjiu hull girder underwater explosion bubble pulsation load wave load combined action motion response |
| title | Response characteristics of hull girder under the combined action of wave and underwater explosion bubble pulsation load |
| title_full | Response characteristics of hull girder under the combined action of wave and underwater explosion bubble pulsation load |
| title_fullStr | Response characteristics of hull girder under the combined action of wave and underwater explosion bubble pulsation load |
| title_full_unstemmed | Response characteristics of hull girder under the combined action of wave and underwater explosion bubble pulsation load |
| title_short | Response characteristics of hull girder under the combined action of wave and underwater explosion bubble pulsation load |
| title_sort | response characteristics of hull girder under the combined action of wave and underwater explosion bubble pulsation load |
| topic | hull girder underwater explosion bubble pulsation load wave load combined action motion response |
| url | http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.02550 |
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