中文摘要：

针对配备了双导管调距桨的全回转拖轮进行紧急停船运动仿真.基于分离型建模思想,建立全回转拖轮的停船运动数学模型.采用塔格尔特剩余阻力图谱获得不同弗汝德数下的剩余阻力系数,建立适用于常速域和低速域的拖轮阻力模型.通过修正后的JD7704导管＋Ka4-70螺旋桨图谱与荷兰船模试验水池最新提出的C4-40调螺旋桨图谱,获得不同水动力螺距角与螺距比下的推力系数,建立适用于导管调距桨实际操纵工况的推力模型.仿真结果显示,所建模型可满足拖轮操纵模拟器中全回转拖轮紧急停船运动精度的要求.

英文摘要：

Aiming at the crash stopping motion simulation of azimuth tug,equipped with double ducted controllable pitch propellers,the stopping motion mathematical model of the azimuth tug was established based on separated modelling. By using the Target＇s residual resistance curves,the residual resistance modulus was obtained at different Froude number.The resistance model for both high and low speed was proposed. By the JD7704 ducted Ka4-70 propeller curves after correction and C4-40 propeller curves derived from Netherlands Ship Model Basin,the thrust coefficient of different hydrodynamic pitch angle and pitch ratio was conducted. The thrust model applying to actual operation condition of ducted controllable pitch propeller was established. Simulation results show that the proposed model can meet the accuracy requirements of crash stopping motion for azimuth stern drive tug on simulator.