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

doi:10.1007/s10483-023-3006-9

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	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)
刊名	APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION ; 6
	2023-06
卷号	44 页码:1023-1034
关键词	internal solitary wave (ISW) riser dynamic response linear analysis O352
ISSN号	0253-4827
DOI	10.1007/s10483-023-3006-9
英文摘要	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.
分类号	一类
WOS研究方向	Mathematics, Applied ; Mechanics
语种	英语
WOS记录号	WOS:000998582900011
资助机构	National Natural Science Foundation of China [12132018, 11972352, 12202455] ; Strategic Priority Research Program of the Chinese Academy of Sciences of China [XDA22000000]
其他责任者	Wang, X (corresponding author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92400]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.{Zhou Jifu} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 2.{Tan Dalin} Beijing Electromech Engn Inst Beijing 100074 Peoples R China 3.{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
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, 6,2023,44:1023-1034.
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,44,1023-1034.
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(2023):1023-1034.