Analysis on coupling characteristics of truss box floating raft-submarine hull and vibration isolation effect in full-frequency range
ObjectivesThis paper aims to study the coupling interaction between a truss box floating raft and submarine hull, and proposes a design approach for enhancing the vibration isolation effect of the truss box floating raft-hull coupling system. MethodsFirst, modal analyses of the aforementioned coupli...
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| Format: | Article |
| Language: | English |
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Editorial Office of Chinese Journal of Ship Research
2022-02-01
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| Series: | Zhongguo Jianchuan Yanjiu |
| Subjects: | |
| Online Access: | http://www.ship-research.com/cn/article/doi/10.19693/j.issn.1673-3185.02208 |
| _version_ | 1811299788277153792 |
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| author | Chenggang LYU Zhuang WANG Xiaobin LI Wei CHEN |
| author_facet | Chenggang LYU Zhuang WANG Xiaobin LI Wei CHEN |
| author_sort | Chenggang LYU |
| collection | DOAJ |
| description | ObjectivesThis paper aims to study the coupling interaction between a truss box floating raft and submarine hull, and proposes a design approach for enhancing the vibration isolation effect of the truss box floating raft-hull coupling system. MethodsFirst, modal analyses of the aforementioned coupling system and individual floating raft and hull structures are carried out respectively, and comparisons are made of the modal shapes between the floating raft of the coupling system and individual floating raft structure, as well as between the hull structure of the coupling system and individual hull structure. The effects of the thickness of the floating raft panel and isolator stiffness on the isolation of the coupling system in the full-frequency range are then investigated. ResultsThe floating raft of the coupling system shows little difference in natural frequency or modal shape compared with the individual floating raft, and the vibration isolation effects are also the same. In addition, the increase in the thickness of the panel and the weakening of the stiffness of the lower vibration isolator will improve the vibration isolation capability of the coupling system. ConclusionsThe results of this study indicate that the mutual influence between the floating raft and hull is small, and can be considered a weak coupling relationship. |
| first_indexed | 2024-04-13T06:42:02Z |
| format | Article |
| id | doaj.art-5c4a1cfe95754709b089e5c620d4e6ee |
| institution | Directory Open Access Journal |
| issn | 1673-3185 |
| language | English |
| last_indexed | 2024-04-13T06:42:02Z |
| publishDate | 2022-02-01 |
| publisher | Editorial Office of Chinese Journal of Ship Research |
| record_format | Article |
| series | Zhongguo Jianchuan Yanjiu |
| spelling | doaj.art-5c4a1cfe95754709b089e5c620d4e6ee2022-12-22T02:57:43ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31852022-02-0117217318210.19693/j.issn.1673-3185.02208ZG2208Analysis on coupling characteristics of truss box floating raft-submarine hull and vibration isolation effect in full-frequency rangeChenggang LYU0Zhuang WANG1Xiaobin LI2Wei CHEN3School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, ChinaChina Ship Development and Design Center, Wuhan 430064, ChinaSchool of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, ChinaSchool of Science, Wuhan University of Technology, Wuhan 430063, ChinaObjectivesThis paper aims to study the coupling interaction between a truss box floating raft and submarine hull, and proposes a design approach for enhancing the vibration isolation effect of the truss box floating raft-hull coupling system. MethodsFirst, modal analyses of the aforementioned coupling system and individual floating raft and hull structures are carried out respectively, and comparisons are made of the modal shapes between the floating raft of the coupling system and individual floating raft structure, as well as between the hull structure of the coupling system and individual hull structure. The effects of the thickness of the floating raft panel and isolator stiffness on the isolation of the coupling system in the full-frequency range are then investigated. ResultsThe floating raft of the coupling system shows little difference in natural frequency or modal shape compared with the individual floating raft, and the vibration isolation effects are also the same. In addition, the increase in the thickness of the panel and the weakening of the stiffness of the lower vibration isolator will improve the vibration isolation capability of the coupling system. ConclusionsThe results of this study indicate that the mutual influence between the floating raft and hull is small, and can be considered a weak coupling relationship.http://www.ship-research.com/cn/article/doi/10.19693/j.issn.1673-3185.02208truss box floating raftcoupling characteristicsmodal analysisstatistical energy methodvibration isolation effect in full-frequency band |
| spellingShingle | Chenggang LYU Zhuang WANG Xiaobin LI Wei CHEN Analysis on coupling characteristics of truss box floating raft-submarine hull and vibration isolation effect in full-frequency range Zhongguo Jianchuan Yanjiu truss box floating raft coupling characteristics modal analysis statistical energy method vibration isolation effect in full-frequency band |
| title | Analysis on coupling characteristics of truss box floating raft-submarine hull and vibration isolation effect in full-frequency range |
| title_full | Analysis on coupling characteristics of truss box floating raft-submarine hull and vibration isolation effect in full-frequency range |
| title_fullStr | Analysis on coupling characteristics of truss box floating raft-submarine hull and vibration isolation effect in full-frequency range |
| title_full_unstemmed | Analysis on coupling characteristics of truss box floating raft-submarine hull and vibration isolation effect in full-frequency range |
| title_short | Analysis on coupling characteristics of truss box floating raft-submarine hull and vibration isolation effect in full-frequency range |
| title_sort | analysis on coupling characteristics of truss box floating raft submarine hull and vibration isolation effect in full frequency range |
| topic | truss box floating raft coupling characteristics modal analysis statistical energy method vibration isolation effect in full-frequency band |
| url | http://www.ship-research.com/cn/article/doi/10.19693/j.issn.1673-3185.02208 |
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