Modelling methods for complex interconnection of very large floating structures based on discrete-module-beam hydroelasticity theory
ObjectiveThe aim of this paper is to proposes new methods for modelling a very large floating structure (VLFS) with complex connections in the framework of the discrete-module-beam (DMB) hydroelasticity theory, and makes a comparison with the existing methods. MethodFirst, a brief introduction of th...
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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.1673-3185.02230 |
| _version_ | 1818910074040483840 |
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| author | Yongqiang CHEN Yu ZHANG Xiantao ZHANG |
| author_facet | Yongqiang CHEN Yu ZHANG Xiantao ZHANG |
| author_sort | Yongqiang CHEN |
| collection | DOAJ |
| description | ObjectiveThe aim of this paper is to proposes new methods for modelling a very large floating structure (VLFS) with complex connections in the framework of the discrete-module-beam (DMB) hydroelasticity theory, and makes a comparison with the existing methods. MethodFirst, a brief introduction of the DMB-based hydroelasticity analysis method is given, followed by procedures for calculating the dynamic response of VLFS under regular waves. A structural stiffness matrix is then defined to model connections with complex forms in VLFS. Corrections are made to the relationship between the forces of two lumped masses and their displacements, obtaining a revised structural stiffness matrix and excitation force matrix, and solving the new hydroelastic equations. Finally, the varying trends of the structural dynamic response of VLFS against different bending stiffness by four methods are explored, and the corresponding reasons for their response differences are analyzed. ResultsThe results show that all four methods are capable of precisely predicting the hydroelastic response of VLFS with complex forms of interconnection. ConclusionThe methods in this paper extend the application of the DMB-based method in predicting the dynamic response of non-continuous VLFS, such as multi-hinged VLFS or VLFS with fracture places. |
| first_indexed | 2024-12-19T22:37:01Z |
| format | Article |
| id | doaj.art-b630707f077a446294653fe0fc5bc588 |
| institution | Directory Open Access Journal |
| issn | 1673-3185 |
| language | English |
| last_indexed | 2024-12-19T22:37:01Z |
| publishDate | 2022-02-01 |
| publisher | Editorial Office of Chinese Journal of Ship Research |
| record_format | Article |
| series | Zhongguo Jianchuan Yanjiu |
| spelling | doaj.art-b630707f077a446294653fe0fc5bc5882022-12-21T20:03:11ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31852022-02-0117111712510.19693/j.issn.1673-3185.02230ZG2230Modelling methods for complex interconnection of very large floating structures based on discrete-module-beam hydroelasticity theoryYongqiang CHEN0Yu ZHANG1Xiantao ZHANG2State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaObjectiveThe aim of this paper is to proposes new methods for modelling a very large floating structure (VLFS) with complex connections in the framework of the discrete-module-beam (DMB) hydroelasticity theory, and makes a comparison with the existing methods. MethodFirst, a brief introduction of the DMB-based hydroelasticity analysis method is given, followed by procedures for calculating the dynamic response of VLFS under regular waves. A structural stiffness matrix is then defined to model connections with complex forms in VLFS. Corrections are made to the relationship between the forces of two lumped masses and their displacements, obtaining a revised structural stiffness matrix and excitation force matrix, and solving the new hydroelastic equations. Finally, the varying trends of the structural dynamic response of VLFS against different bending stiffness by four methods are explored, and the corresponding reasons for their response differences are analyzed. ResultsThe results show that all four methods are capable of precisely predicting the hydroelastic response of VLFS with complex forms of interconnection. ConclusionThe methods in this paper extend the application of the DMB-based method in predicting the dynamic response of non-continuous VLFS, such as multi-hinged VLFS or VLFS with fracture places.http://www.ship-research.com/cn/article/doi/10.19693/j.issn.1673-3185.02230very large floating structureinterconnected modulesdiscrete-modulebeam elementhydroelasticity |
| spellingShingle | Yongqiang CHEN Yu ZHANG Xiantao ZHANG Modelling methods for complex interconnection of very large floating structures based on discrete-module-beam hydroelasticity theory Zhongguo Jianchuan Yanjiu very large floating structure interconnected modules discrete-module beam element hydroelasticity |
| title | Modelling methods for complex interconnection of very large floating structures based on discrete-module-beam hydroelasticity theory |
| title_full | Modelling methods for complex interconnection of very large floating structures based on discrete-module-beam hydroelasticity theory |
| title_fullStr | Modelling methods for complex interconnection of very large floating structures based on discrete-module-beam hydroelasticity theory |
| title_full_unstemmed | Modelling methods for complex interconnection of very large floating structures based on discrete-module-beam hydroelasticity theory |
| title_short | Modelling methods for complex interconnection of very large floating structures based on discrete-module-beam hydroelasticity theory |
| title_sort | modelling methods for complex interconnection of very large floating structures based on discrete module beam hydroelasticity theory |
| topic | very large floating structure interconnected modules discrete-module beam element hydroelasticity |
| url | http://www.ship-research.com/cn/article/doi/10.19693/j.issn.1673-3185.02230 |
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