Experimental Study of Mooring Type Effect on the Hydrodynamic Characteristics of VLFS  

作　　者：FENG Ming-wei SUN Zhao-chen LIANG Shu-xiu LI Zhi LV Xuan JIA Song-lin HUXin-yue 

机构地区：[1]State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China

出　　处：《China Ocean Engineering》2022年第1期155-166,共12页中国海洋工程（英文版）

基　　金：financially supported by the National Key R&D Program of China (Grant Nos. 2019YFC1407702 and 2019YFC1407705)

摘　　要：Mooring system is a significant part of very large offshore floating structures(VLFS).In this paper,a single module pontoon type VLFS model considering four mooring types is studied through physical model tests to determine the effects of mooring conditions on the hydroelastic response,mooring force,incident coefficient,reflection coefficient and energy dissipation coefficient.Eight mooring cables are symmetrically arranged on both sides of the model.The floating body model satisfies the similarity of stiffness and gravity,while the cable satisfies the similarity of elasticity and gravity.The results show that the effect of mooring type on mooring force is greater than that on hydroelastic response.Increasing the initial tension of the mooring cable will reduce the amplitude of the leeward of the VLFS model.The mooring angle of the mooring cable will affect the maximum mooring force and the initial tension of the mooring line will affect the wave period in which the maximum mooring force occurs.The transmission coefficient and wave energy dissipation coefficient will change regularly with different mooring types.These results may provide a reference to facilitate the mooring design of VLFS.

关 键 词：VLFS hydroelastic response mooring system 3D experimental test mooring force wave reflection coefficient wave transmission coefficient wave dissipation coefficient 

分 类 号：P752[天文地球—海洋科学]