摘要
借助白噪声谱在数学处理上的独特优势,利用计算流体力学方法(CFD),生成了高精度的白噪声长峰不规则波,实现了船模在该海浪环境下顶浪航行时的纵摇及垂荡耦合运动的数值模拟,从而计算船模纵摇和垂向加速度的响应幅值算子(RAO),达到了由海上实测摇荡时历反推较高精度海浪频谱的目标,并将反推结果与海上实测海浪数据进行了对比,效果良好,从而为在航船舶提供了一种获取当前海浪信息的新方法。
With ＆e unique advantages of the white noise theory, the precise oblique long crest waves of white noise is generated based on Computational Fluid Dynamics in this paper. And a ship model＇s coupled pitch and heave motions are simulated in the head waves. The response amplitude operators （RAO） are calculated based on the simulation results. Based on this, current frequency spectrum is estimated through ship motions, which shows good agreement with measured data. Therefore, a new method is presented to obtain current wave parameters for sailing ships.
出处
《船舶工程》
北大核心
2015年第2期9-13,共5页
Ship Engineering
