摘要
本文收集了有关船舶操纵运动数学模型和船桨舵水动力计算方面的文献和资料,并在自航船模于不同水深和不同主机工况下操纵运动试验结果的基础上,应用流体力学、参数辩识等方法,给出了不同水深情况下船桨舵四象限水动力及其干扰系数和风、浪、流对船舶作用力的计算公式,建立了可综合预报船舶在风、浪、流及浅水域中多工况操纵运动的数学模型和计算程序。与自航船模试验结果的比较表明,本模拟计算方法的计算精度是可以接受的。
In this paper, the authors present a practical mathematical model de scribing the maneuvering motions of ships in wind, wave, flow and shallow water. Formulas for estimating four quadrants hydrodynamic coefficients of ships of the mathematical model are obtained by the methods of system identification. Meanwhile, maneuvering experiments of two ship models were carried out in different water depths. Formulas of calculating external forces acted on ships by flow and wave are derived by the relative motion theory and linear wave theory under some hypotheses. In order to verify the effectiveness of the mathematical model, the authors made simulation calculations of maneuvering motions of ship models under different environmental conditions of wind, wave, flow and water depth. Calculatig results were m general coincident with experimental results.
出处
《中国造船》
EI
CSCD
北大核心
1989年第3期38-52,共15页
Shipbuilding of China
