三体滑行艇在规则波中的数值预报

摘要

基于切片法原理，采用成熟的商业软件 SeaKeeper 计算三体滑行艇在迎浪规则波中的纵摇运动和垂荡运动幅值响应函数，并将两种不同速度下的理论预报结果与试验结果进行对比分析。结果表明：预报结果与试验值在趋势上较为一致，其遭遇频率也十分接近，说明使用切片法计算三体滑行艇在迎浪规则波中的运动是可行的。%　　Based on the principle of the strip method,this paper analyses the response function of pitching and heaving oscillation of trimaran-planing boats,resorting to the mature commercial software,SeaKeep⁃er. The calculation is performed under the assumption of head regular waves,and the prediction results are compared with the experimental results under different traveling speeds. The numerical results are seen to be highly consistent with the field data,and the encounter frequencies are also sufficiently close,which suggests that the strip method is applicable in predicting the motion of trimaran-planing boats in the head regular waves.