全回转双桨船舶操纵性预报  

Maneuverability prediction for a ship with full-revolving twin propellers

作　　者：吴兴亚[1] 高霄鹏[1] 

机构地区：[1]海军工程大学舰船工程系,湖北武汉430033

出　　处：《中国舰船研究》2017年第1期27-31,62,共6页Chinese Journal of Ship Research

摘　　要：为实现对全回转桨船操纵性的预报,根据船舶分离型运动模型的建模方法,考虑全回转桨在水平面上周转的灵活性与受力的特殊性,着重分析双桨受力,建立适用于全回转对转桨船模的MMG操纵运动数学模型;模拟船模进行PMM运动,求得水动力导数并采用四阶龙格—库塔法对操纵性常微分方程进行求解;对某工程船在静水中的回转运动和Z形操纵运动进行数值仿真预报,并将预报结果与自航模操纵性试验结果进行对比。结果表明,两者吻合度较高,验证了针对全回转对转桨船模所建立的船舶运动数学模型的有效性,可为全回转桨船的操纵性预报提供一种较为可靠且行之有效的方法。To predict the maneuverability of full-revolving propeller ships, this paper analyzes the propeller force and establishes MMG equations for controlling motion mathematical models that are suited to the full-revolving propeller model, in accordance with the modeling method of the separating ship motion model and taking into account the special nature of the force and flexibility of a full rotation in the horizontal plane of a full-revolving propeller. Secondly, hydrodynamic force derivatives for the ship model are obtained by simulating the model＇s PMM movement, and the controlling Ordinary Differential Equation （ODE） is solved using the four-stage Rung-Kuta method. Finally, the numerical simulation of a certain ship＇s rotating motion and its zigzag test in still water is obtained, and the prediction results are compared with that of a self-running model. It is found that the simulation results agree well with the trial results, and the effectiveness of the ship motion model for the full-revolving propeller model is validated. In brief, this paper provides a reliable and effective method of predicting the maneuverability of full-revolving propeller ships.

关 键 词：全回转桨 MMG数学模型 水动力导数 数值仿真 操纵性预报 

分 类 号：U661.33[交通运输工程—船舶及航道工程]