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3D nonlinear dynamic analysis of cable-moored offshore structures
Wang,Kun1; Er,Guo Kang2; Zhu,Zhihui1,3
2020-10-01
Source PublicationOcean Engineering
ISSN0029-8018
Volume213Pages:107759
Abstract

The nonlinear oscillations of the floating structures anchored by cables are studied in three dimensions. The floating structure is anchored by four symmetric mooring lines and the mooring lines are fixed on the seafloor at the other ends. The stiffness matrix of 3D cable element has been established and applied to analyze the dynamics of the 3D floating structures anchored by cables. The complex compatibility conditions which relate the responses of the floating body and cables have been proposed. The equations of motion for the mooring lines and floating body are individually formulated. Then they are combined as an entire system by utilizing the compatibility conditions. At last, the entire system is analyzed numerically with horizontal harmonic excitations applied on the floating body. The amplitudes for both the responses of the platform and the maximum mooring force are studied as the excitation frequency changes. The responses of the platform and the maximum mooring force are also investigated for varieties of cable parameters.

Keyword3d Cable Element Compatibility Conditions Elemental Stiffness Matrix Nonlinear
DOI10.1016/j.oceaneng.2020.107759
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering ; Oceanography
WOS SubjectEngineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography
WOS IDWOS:000562767200049
PublisherPERGAMON-ELSEVIER SCIENCE LTDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Scopus ID2-s2.0-85088144837
Fulltext Access
FWCI0.23503038
Citation statistics
Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Science and Technology
DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Corresponding AuthorZhu,Zhihui
Affiliation1.School of Civil Engineering,Central South University,Changsha,China
2.Department of Civil and Environmental Engineering,University of Macau,Macau SAR,China
3.National Engineering Laboratory for High-Speed Railway Construction,Central South University,Changsha,China
Recommended Citation
GB/T 7714
Wang,Kun,Er,Guo Kang,Zhu,Zhihui. 3D nonlinear dynamic analysis of cable-moored offshore structures[J]. Ocean Engineering,2020,213:107759.
APA Wang,Kun,Er,Guo Kang,&Zhu,Zhihui.(2020).3D nonlinear dynamic analysis of cable-moored offshore structures.Ocean Engineering,213,107759.
MLA Wang,Kun,et al."3D nonlinear dynamic analysis of cable-moored offshore structures".Ocean Engineering 213(2020):107759.
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