3-D computational method of wave loads on turret moored FPSO tankers  

作　　者：REN Hui-long, ZHANG Hai-bin, DAI Yu-zhi, SONG Jing-zheng School of Shipbuilding Engineering , Harbin Engineering University , Harbin 150001, China 

出　　处：《Journal of Marine Science and Application》2003年第1期1-10,共10页船舶与海洋工程学报（英文版）

摘　　要：A three-dimensional method of calculating wave loads of turret moored FPSO (Flo ating Production Storage and Offloading) tankers is presented. The linearized restoring forces acting on the ship hull by the mooring system are calculated according to the catenary theory, which are expressed as the function of linear stiffness coefficients and the displacements of the upper ends of mooring chains. The hydrodynamic coefficients of the ship are calculated by the three-dimensional potential flow theory of the linear hydrodynamic problem for ships with a low forward speed. The equations of ship motions are established with the effect of the restoring forces from the mooring system included as linear stiffness coefficients. The equations of motions are solved in frequency domain, and the responses of wave-induced motions and loads on the ship can be obtained. A computer pro gram based on this method has been developed,and some calculation examples are illustrated. Analysis results show that the method can give satisfying prediction of wave loads.

关 键 词：FPSO tanker wave loads potential flow theory mooring system 

分 类 号：U661[交通运输工程—船舶及航道工程]