Prediction Method and Validation Study of Tensile Performance of Reinforced Armor Layer in Marine Flexible Pipe/Cables

被引:7
|
作者
Wang, Hualin [1 ]
Yang, Zhixun [1 ]
Yan, Jun [2 ]
Wang, Gang [3 ]
Shi, Dongyan [1 ]
Zhou, Baoshun [4 ]
Li, Yanchun [5 ]
机构
[1] Harbin Engn Univ, Coll Mech & Elect Engn, Inst Marine Machinery, Harbin 150001, Peoples R China
[2] Dalian Univ Technol, Fac Vehicle Engn & Mech, Dept Engn Mech, Dalian 116024, Peoples R China
[3] Dalian Jiaotong Univ, Sch Civil Engn, Dalian 116028, Peoples R China
[4] Tech Univ Denmark, Dept Mech Engn, DK-2800 Copenhagen, Denmark
[5] Heilongjiang Acad Sci, Inst Adv Technol, Harbin 150001, Peoples R China
基金
中国国家自然科学基金;
关键词
marine flexible pipe/cables; helically wound structures; tensile performance; WIRE; TORSION; CABLES;
D O I
10.3390/jmse10050642
中图分类号
U6 [水路运输]; P75 [海洋工程];
学科分类号
0814 ; 081505 ; 0824 ; 082401 ;
摘要
Marine flexible pipe/cables, such as umbilicals, flexible pipes and cryogenic hoses, are widely adopted in ocean engineering. The reinforcing armor layer in these pipe/cables is the main component for bearing loads, which is a typical multi-layer helically wound slender structure with different winding angles for different devices. There has been no general theoretical methodology to describe the tensile performance of these flexible pipe/cables. This paper first introduces a theory to solve the tensile mechanical behavior of a helically wound structure. Based on the curved beam theory, a solution of the tensile stress of a helically wound slender is derived. Then, the deformation mechanism of the marine flexible pipe/cables structure with different winding angles is studied. Through comparing theoretical and numerical results, the deformation characteristic of the helically wound slender structure is further explained. It is found that a sectional torsional deformation generates when the structure with a larger winding angle is under tension condition, while the sectional deformation of the structure with a smaller winding angle is mainly tension. Finally, a couple types of marine flexible pipe/cables under the tension condition are provided to analyze the mechanical performance and compare the difference between different theoretical models. The research conclusion from this paper provides a useful reference for the structural analysis and design of marine flexible pipe/cables.
引用
收藏
页数:16
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