群性波列作用下系泊船舶的水动力响应数值模拟

A numerical study on the hydrodynamic response of moored ship under the action of wave grouping

该文根据随机波群的模拟方法,模拟得到具有同一有效波高,有效周期但不同群性的随机波列,研究了不同群高参数GFH和群长参数GLF的波列作用下系泊船的运动响应及缆绳张力。数值计算结果表明,系泊船横移运动量和缆绳张力呈现随波浪群高的增大而增大的趋势,升沉运动量也略有增加,而波浪群长的变化对系泊船的运动响应及缆绳张力基本没有影响。

Waves with the same wave parameters, such as significant wave height and period, but with different wave groupiness are simulated, the responses of moored ship under the action of wave groups with different group height factor GFH and group length factor GLF are discussed. The numerical results show that the sway, heave motions and mooring line force increase with an increase in GFH, and the influence of GLF on the motions of a moored ship and mooring line force is nearly neglectable.