喷水推进船操纵运动数学建模仿真分析  

Mathematical Modeling and Simulation Analysis of Maneuvering Motion of Waterjet Propulsion Ship

作　　者：刘小健 侯珂[4] 吴永顺 杨素军[2,3] Liu Xiaojian;Hou Ke;Wu Yongshun;Yang Sujun(Science and Technology on Water Jet Propulsion Laboratory,Shanghai 20001l,China;Marine Design and Research Institute of China,Shanghai 200011,China;Shanghai Key Laboratory on Ship Engineering,Shanghai 200011,China;Shanghai Haixun Electromechanical Engineering Co.,Ltd,Shanghai 20001l,China)

机构地区：[1]喷水推进技术重点实验室,上海200011 [2]中国船舶及海洋工程设计研究院,上海200011 [3]上海市船舶工程重点实验室,上海200011 [4]上海海迅机电工程有限公司,上海200011

出　　处：《水动力学研究与进展（A辑）》2024年第1期46-51,共6页Chinese Journal of Hydrodynamics

摘　　要：喷水推进船具有高航速、浅吃水等特点,回转性能优越。该文以喷泵和喷水推进船为研究对象,首先采用称重法,开展喷泵流量标定试验;而后基于裸船体和带四个喷泵的船体,开展水池中约束模平面运动机构模型试验,如斜航运动、横荡运动、摇首运动及自航操舵试验等,获取船体水动力和喷口流量;再采用最小二乘法,回归分析得到相关的水动力导数,建立整体式和分离式操纵运动数学模型,编制喷水推进船的操纵运动程序,数值模拟30°回转运动和10°/10°z形试验,并与外场自由自航模操纵性进行比较。数值模拟结果显示:通过整体式运动数学模型和分离式运动数学方法,战术直径误差在5.5%以内,第一超越角误差为2°左右,这两种方法都能较好地吻合模型试验结果。相较而言,基于整体式运动数学模型的模型试验或CFD数值计算的难度更高且经济成本较大,而在实际工程数值模拟中,基于分离式运动数学模型的数值模拟更容易实施。Waterjet propulsion ships have the characteristics of high speed,shallow draft and superior turning performance.In this paper,for the bare hull and the hull with four jet pumps,planar motion mechanism(PMM)model tests are carried out in a tank,such as the oblique motion,sway motion,yaw motion,and free running model test,to obtain the hull hydrodynamic force and nozzle flow;Thirdly,the least square method is used to obtain the hydrodynamic derivatives through regression analysis.The mathematical models based on Abkowitz and MMG model are established,and the maneuvering motion program of the waterjet propulsion ship is developed.The 30°turning test and 10°/10°zigzag test are simulated.The numerical simulation results show that the error of the tactical diameter is within 5.5%using MMG and Abkowitz models,that the error of the first overshoot angle is about 2°by using the MMG model,both of which are in good agreement with the free running model test results.By comparison,the model test or CFD numerical calculation related to the Abkowitz model is more difficult and costly.In practical engineering numerical simulations,numerical simulations based on MMG model are also easier to implement.

关 键 词：喷水推进 操纵 整体式运动数学模型 分离式运动数学模型 

分 类 号：U661.3[交通运输工程—船舶及航道工程]