波浪中船舶操纵性预报

The Prediction on Ship Manoeuvring Performance in Wave

本文通过四自由度操纵运动数学模型 ,对某工程船在静水中和波浪中的Z形运动和回转运动进行预报 ,并由自航模操纵性试验验证。文中还分析了波高 Hw,波长船长比λ/L,船速U和操舵角δ诸因素对该船在波浪中的操纵性的影响。从结果显示可知计算和试验结果是比较吻合的 ,所提供的计算方法适用于船舶静水中和波浪中的操纵性能预报。

In this paper,a four DOF mathematical model describing the maneuvering motions of an engineering ship for the heel in turning,turning and zigzag motions in calm water and wave,and a free-running model maneuvering test for the ship are provided.And the paper analyzes the influence of wave high ,wave length to ship length ratio λ/L,ship speed U and rudder angle δ on maneuverability of the ship.Since there is a little difference between measurement and calculated results,it can be seen that the method of the prediction of ship manoeuvring performance is effective.