基于线性势流理论和动力学相关理论,考虑箱型气浮结构内部气-水交界面处的非线性边界条件,采用谱分析法对结构在波浪作用下的运动响应进行短期预报和统计,与参考文献对比表明,计算结果合理;垂荡运动位于波能集中段而纵摇运动避开了波能集中段;结构的最大纵摇角小于静稳性曲线产生最大恢复力矩的纵摇角.对于此类结构,可通过在设计中采用合理的分舱设计或尺寸优化,以及在施工中绑缚浮筒、改变拖航的速度和航向的方法避开波能集中段.
Based on the linear potential flow theory and dynamics theory, considering the non-linear boundary conditions of air-water interface in the structure of the air floating rectangular box, the short-term prediction for motion responses of structure in wave were taken by the method of spectral analysis.Comparison with reference results, it was shown that the calculation results are reasonable;the period of heave motion is located in wave energy concentration area and the pitch motion avoids the wave energy concentration;the angle of pitch is less than that of the maximum restore moment in static stability curve.The wave energy concentration can be avoided by the way of reasonable compartment design or size optimization in design and pontoon tied or changing the speed and the direction when towing in construction.