Analysis on restoring stiffness and its hysteresis behavior of slender catenary mooring-line

doi:10.1016/j.oceaneng.2020.107521

IMECH-IR > 流固耦合系统力学重点实验室

	Analysis on restoring stiffness and its hysteresis behavior of slender catenary mooring-line
	Li YL 1,5; Guo SX(郭双喜)2,3,4 ; Chen WM(陈伟民)2,4 ; Yan DB(严定帮)2,4; Song JX(宋吉祥)2,4
发表期刊	OCEAN ENGINEERING
	2020-08-01
卷号	209 页码:10
ISSN	0029-8018
摘要	In deeper ocean area, more and more floating oil/gas production platforms or wind turbine have been in operation instead of the fixed truss in shallow water. These floaters need to be located among a range of position by its mooring system, e.g. tension tendon and catenary mooring-line, so as to guarantee structural safety and stability under environmental loads. Catenary mooring-line is increasingly used due to its lower cost and easier installation. Its dynamics coming from structure and fluid flow becomes more obvious with the increase of structural length, which may introduce significant impact on restoring performance of mooring-line. In this study, the non-linearly restoring performance and the hysteresis behavior of mooring-line's stiffness are studied. The nonlinear dynamic model of the mooring-line is established based on the improved FEM simulations. It is found that the restoring stiffness of the catenary mooring-line presents a hysteresis characteristic, principally owing to the damping effect of the catenary dynamics, which gets more obvious with the increase of motion amplitude/frequency. And, the mooring-line dynamics has significant impacts on the tension (related to its restoring stiffness) and displacement response, e.g. the maximum tension amplitude is up to 5.2 times of the quasi-static value if slack happens.
关键词	Dynamic response Damping Hysteresis behavior Restoring performance
DOI	10.1016/j.oceaneng.2020.107521
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000542188700005
关键词[WOS]	OFFSHORE WIND TURBINE ; DYNAMIC-RESPONSE ; MODEL ; TENSION ; SPAR
WOS研究方向	Engineering ; Oceanography
WOS类目	Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography
项目资助者	Strategic Priority Research Programme of CAS[XDA22000000] ; National Natural Science Foundation of China[11372320]
论文分区	一类
力学所作者排名	1
RpAuthor	Chen, Weimin
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/84735
专题	流固耦合系统力学重点实验室
作者单位	1.Univ Paris Saclay, Lab MSSMat, Cent Supelec, F-91190 Gif Sur Yvette, France; 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 3.AVIC Composite Technol Ctr, AVIC Mfg Technol Inst, Beijing 101300, Peoples R China; 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 5.Beijing Univ Aeronaut & Astronaut, Sino French Engn Sch, Beijing 100191, Peoples R China
推荐引用方式 GB/T 7714	Li YL,Guo SX,Chen WM,et al. Analysis on restoring stiffness and its hysteresis behavior of slender catenary mooring-line[J]. OCEAN ENGINEERING,2020,209:10.
APA	Li YL,郭双喜,陈伟民,严定帮,&宋吉祥.(2020).Analysis on restoring stiffness and its hysteresis behavior of slender catenary mooring-line.OCEAN ENGINEERING,209,10.
MLA	Li YL,et al."Analysis on restoring stiffness and its hysteresis behavior of slender catenary mooring-line".OCEAN ENGINEERING 209(2020):10.

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