规则横浪作用下船舶流-刚耦合振动计算

Fluid-Rigid Body Coupling Vibration of Ship under Regular Transverse Wave

基于动力学基本方程,首先建立了刚性船舶横摇的耦合振动方程,然后给出了在规则横浪激励下的耦合振动方程的定解条件和一阶常微分方程组,最后通过算例计算了在规则横浪作用下船舶的振动规律,同时研究了阻尼系数等参数对其振动规律的影响情况。算例分析结果与实际情况定性结论比较吻合,从而为此类船舶的振动分析提供参考。

Based on the dynamics fundamental equation, the rigid ships rolling coupled oscillation model was established, then the definite condition of the coupled oscillation equation under the regular transverse wave and first-order ordinary differential equations were presented. The ship vibration rule under the regular transverse wave was analyzed by examples, simultaneously the influence of damping coefficient on the vibration type was discussed. were results. The result is quite consistent with the actual qualitative conclusion.