Elastic responses of a flotation ring in water waves

被引:27
作者
Dong, Guo-hai [1 ]
Hao, Shuang-hu [2 ]
Zhao, Yun-peng [1 ]
Zong, Zhi [3 ]
Gui, Fu-kun [4 ]
机构
[1] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Liaoning, Peoples R China
[2] China Offshore Oil Engn Co Ltd, Tianjin 300451, Peoples R China
[3] Dalian Univ Technol, Sch Naval Architecture, Dalian 116024, Liaoning, Peoples R China
[4] Zhejiang Ocean Univ, Marine Sci & Technol Sch, Zhoushan 316000, Peoples R China
基金
中国国家自然科学基金;
关键词
Floating ring; Rigid-body motion; Elastic deformation; Morison formula; HORIZONTAL CYLINDER; MARINE AQUACULTURE; CAGE; MOTION;
D O I
10.1016/j.jfluidstructs.2009.09.001
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The gravity-type fish cage is extensively applied in open-sea fishery aquaculture Its practicality is closely related to the reliability of the flotation ring which is its main load-bearing component Therefore. it is necessary to study the elastic responses of the flotation ring in ocean waves Here, an analytical method is proposed to analyze the elastic deformations of a circular ring subjected to water waves The governing equations of six degree-of-freedom motions and elastic deformations are obtained according to Euler's laws and curved beam theory In order to examine the method, a series of physical model tests were carried out The surge and heave displacements of the ring between the predicted results and experimental measurements are compared, and good correlation is represented. The effects of the propagation directions of the incident wave on elastic responses of the ring are then analyzed It is concluded that small deformations of the ring occur when the configuration of the mooring cables is symmetrically arranged along the propagation direction or the incident waves Additionally, the out-of-plane stiffness is suggested to be strengthened in order to diminish the corresponding deformations (C) 2009 Elsevier Ltd All rights
引用
收藏
页码:176 / 192
页数:17
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