Linear analysis of the dynamic response of a riser subject to internal solitary waves

doi:10.1007/s10483-023-3006-9

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	Linear analysis of the dynamic response of a riser subject to internal solitary waves
	Tan, Dalin; Wang X(王旭); Duan JL(段金龙); Zhou JF(周济福)
发表期刊	APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION
	2023-06
卷号	44 期号:6 页码:1023-1034
ISSN	0253-4827
摘要	The flow field induced by internal solitary waves (ISWs) is peculiar wherein water motion occurs in the whole water depth, and the strong shear near the pycnocline can be generated due to the opposite flow direction between the upper and lower layers, which is a potential threat to marine risers. In this paper, the flow field of ISWs is obtained with the Korteweg-de Vries (KdV) equation for a two-layer fluid system. Then, a linear analysis is performed for the dynamic response of a riser with its two ends simply supported under the action of ISWs. The explicit expressions of the deflection and the moment of the riser are deduced based on the modal superposition method. The applicable conditions of the theoretical expressions are discussed. Through comparisons with the finite element simulations for nonlinear dynamic responses, it is proved that the theoretical expressions can roughly reveal the nonlinear dynamic response of risers under ISWs when the approximation for the linear analysis is relaxed to some extent.
关键词	internal solitary wave (ISW) riser dynamic response linear analysis O352
DOI	10.1007/s10483-023-3006-9
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:000998582900011
WOS研究方向	Mathematics, Applied ; Mechanics
项目资助者	National Natural Science Foundation of China [12132018, 11972352, 12202455] ; Strategic Priority Research Program of the Chinese Academy of Sciences of China [XDA22000000]
论文分区	一类
力学所作者排名	1
RpAuthor	Wang, X (corresponding author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/92400
专题	流固耦合系统力学重点实验室
作者单位	1.{Tan Dalin, Wang Xu, Duan Jinlong, Zhou Jifu} Chinese Acad Sci Inst Mech Key Lab Mech Fluid Solid Coupling Syst Beijing 100190 Peoples R China 2.{Tan Dalin} Beijing Electromech Engn Inst Beijing 100074 Peoples R China 3.{Zhou Jifu} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China
推荐引用方式 GB/T 7714	Tan, Dalin,Wang X,Duan JL,et al. Linear analysis of the dynamic response of a riser subject to internal solitary waves[J]. APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION,2023,44,6,:1023-1034.
APA	Tan, Dalin,王旭,段金龙,&周济福.(2023).Linear analysis of the dynamic response of a riser subject to internal solitary waves.APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION,44(6),1023-1034.
MLA	Tan, Dalin,et al."Linear analysis of the dynamic response of a riser subject to internal solitary waves".APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION 44.6(2023):1023-1034.

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