| 基于多系数保角变换法的船舶垂荡纵摇运动仿真 |
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| 引用本文： | 张腾,任俊生,范小晴,张秀凤.基于多系数保角变换法的船舶垂荡纵摇运动仿真[J].上海海事大学学报,2019,40(3):51-56. |
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| 作者姓名： | 张腾 任俊生 范小晴 张秀凤 |
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| 作者单位： | 大连海事大学航海学院;大连理工大学信息与通信工程学院 |
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| 基金项目： | 国家自然科学基金（51779029；51679024）；国家高技术研究发展计划（“八六三”计划)（2015AA016404）；海洋公益性行业科研专项（201505017-4） |
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| 摘 要： | 为给航海模拟器建立实用可靠的船舶在波浪中运动的数学模型,基于二维线性势流理论,采用多系数保角变换法对每个船舶横剖面进行高精度拟合,计算各个横剖面的水动力系数和波浪激励力,利用Visual Studio自主开发出船舶在规则波中的纵向运动数值模拟程序。为验证这个数值模拟程序的可靠性,对S175集装箱船在迎浪中运动的幅值响应因子(response amplitude operator, RAO)进行数值计算。结果表明:当弗劳德数为0.275时,RAO计算结果在大部分频率范围内与试验结果吻合良好。因此,这个数值模拟程序能准确地对船舶在波浪中的运动时历进行仿真。
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| 关 键 词： | 航海模拟器 船舶运动数学模型 多系数保角变换 数值模拟 时历 |
| 收稿时间： | 2018/8/6 0:00:00 |
| 修稿时间： | 2019/3/6 0:00:00 |
Simulation on ship heave and pitch motion based on multi-parameter conformal mapping method |
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| ZHANGTENG,RENJUNSHENG,FAN Xiaoqing and ZHANGXIUFENG.Simulation on ship heave and pitch motion based on multi-parameter conformal mapping method[J].Journal of Shanghai Maritime University,2019,40(3):51-56. |
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| Authors: | ZHANGTENG RENJUNSHENG FAN Xiaoqing and ZHANGXIUFENG |
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| Institution: | Dalian Maritime University,Dalian Maritime University,Dalian University of Technology and Dalian Maritime University |
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| Abstract: | To establish an accurate and practical mathematical model of ship motions in waves for the maritime simulator, based on the 2D linear potential flow theory, each transverse section of a ship is fitted with high precision using the multi parameter conformal mapping method, the hydrodynamic coefficients and wave exciting forces of each transverse section are solved, and the numerical simulation program based on Visual Studio is developed independently for ship longitudinal motions in regular waves. To verify the reliability of the numerical simulation program, numerical calculations are carried out for the response amplitude operator (RAO) of an S175 container ship in head waves. The results show that: when Froude number is 0.275, the numerical results of RAOs are in good agreement with the experimental results in the definitive range of frequency. Thus, the time history of ship motions in waves can be simulated accurately by the numerical simulation program. |
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| Keywords: | maritime simulator ship motion mathematical model multi parameter conformal mapping numerical simulation time history |
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