锚泊多浮体系统动态响应

为保证锚泊多浮体系统能够在波浪中正常作业和生存,基于三维频域Green函数法就一定水深不同浪向下锚泊多浮体系统的运动响应、锚缆拉力和连接器载荷进行了数值预报.分析中考虑到了浮体辐射势之间的相互影响以及连接器和锚系对于浮体运动响应的影响.分析表明,浮体的运动响应、连接器栽荷以及锚缆张力受波频和浪向的影响很大,各项的极值出现在低频范围,浪向在30°和45°之间,连接器载荷出现最大值,而锚缆张力则在浪向90°时张力最大,处于迎浪面的锚缆张力较大于处于背浪面的锚缆张力.

Dynamic response of muti-floating-body system

The mot ion response o f float ing body system, tension force of mo oring chains and linking loadings of connectors were predicted under differ ent incident w ave ang les and w ave frequencies based on 3-dimensio n po tent ial f low theory , the inter act ion betw een the radiat ion potent ial s of f loat ing bo dies w as co nsidered and the ef fect s caused by tensile forces of chains and linking forces on the mot ion r espo nse of the system w ere taken into account . T he results show that the incident w ave angles and fr equencies affect the dy namic response o f f loat ing bodies obviously . The ex t remum of the mot ion response of the float ing bodies, tension for ces of moo ring chains and linking lo ads o f connectors occur in the area of low f requency . When w ave direct ion is f rom 30°t o 45°, the ex tr emum of the co nnectoring lo ads o f connector s w ill appear. If the w ave direct ion is 90°, the ext remum of the tension force of mo oring chains will happen. T he tension fo rces of mooring chains in head w aves is greater than the one in fo llow ing w aves.