拖航系统偏荡情况的仿真研究  

A Simulation Study of Towing System Slewing Situation

作　　者：洪碧光[1] 李强[1] 高孝日[1] 吕巍巍[1] 

机构地区：[1]大连海事大学航海学院,辽宁大连116026

出　　处：《中国航海》2009年第3期106-110,F0003,共6页Navigation of China

摘　　要：为研究被拖船装载情况对拖航系统偏荡程度的影响,根据分离型建模思想,建立了拖船———拖缆———被拖船的拖航系统数学模型,分析了拖航系统在航行时受力的情况,并利用MATLAB仿真软件,仿真了拖航系统的运动情况,仿真结果表明:拖航速度、拖缆长度、被拖船的载况和浮态等拖航系统自身状态会影响拖航系统的偏荡幅度,同时影响拖缆张力的变化;浅水效应会在一定程度上减小拖航系统的偏荡幅度;风舷角为120°的来风对拖航系统偏荡最明显;斜流时,拖航系统会产生"单偏"现象。这些仿真研究对驾驶员的实际工作有一定的指导价值。In order to study the impact of loading conditions of towed vessel on slewing extent of towing system, a mathematical model of towing system, which consists of one tow vessel, one towing cable and one towed vessel, is constructed, based on the Ship Maneuvering Model Group mathematical model （MMG）. The cable force when towing system operating is analyzed and a simulation about towing system movement is carried out by MATLAB. Simulation results show that slewing situation of towing system is affected by towing speed, cable length, loading condition of towed vessels etc. ; shallow water weakens slewing situation; the wind with 120°wind angle has effect on slewing situation most obviously and cross-stream has less impact of biased swing, but the towing system deviates from the plan of whole route. These simulation studies may be a reference for navigators.

关 键 词：水路运输 船舶 拖航系统 偏荡 仿真 

分 类 号：U675.93[交通运输工程—船舶及航道工程]