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基于水动力模型的船舶航态的模拟仿真
引用本文:曾芬芳,陈晓军,林剑柠,陈洁,姚煜.基于水动力模型的船舶航态的模拟仿真[J].系统仿真学报,2001,13(3):376-380.
作者姓名:曾芬芳  陈晓军  林剑柠  陈洁  姚煜
作者单位:华东船舶工业学院,
摘    要:根据船舶运动动态平衡原理,采用源汇法建立了在不同浪向下船舶横向运动的不动力模型,根据给定的船舶参数,用STF切片法计算了船体的水动力系数和波浪扰动力(矩),并存入数据库。提出了采用四阶龙格-库塔法求解船舶运动水动力模型的线性微分方程组,以获得船舶随时间变化的各自由度运动幅值。提出并采用了与以往不同的三维模拟仿真方法-虚拟现实技术,创建了天空和海面波浪等三维虚拟场景,实现了具有真实感的、随时间变化的三维船舶航态(横摇、摇艏、横荡)在该场景中的实时动态仿真,取得了良好的效果。

关 键 词:虚拟现实  水动力模型  船舶航态  模拟仿真
文章编号:1004-731(2001)03-0376-05
修稿时间:2001年3月15日

Hydrodynamic Model Based Simulation of Ship's Navigation State
ZENG Fen-fang,CHEN Xiao-jun,LIN Jian-ning,CHEN Jie,YAO Yu.Hydrodynamic Model Based Simulation of Ship's Navigation State[J].Journal of System Simulation,2001,13(3):376-380.
Authors:ZENG Fen-fang  CHEN Xiao-jun  LIN Jian-ning  CHEN Jie  YAO Yu
Abstract:In this paper, the landscape orientation hydrodynamic model of a warship under different wave directions has been built with the source-combining method. According to given parameters of a warship, its hydrodynamic coefficients and disturbing moments is calculated with the STF strip method and stored in a database. The four-step Runge-Kutta method is then used to solve a linear differential equation set of the warship's hydrodynamic model to get warship's motion attitudes with the lapse of time. And also a 3D simulation method, the virtual reality technology, is used to create the 3D virtual sea scene with sky and wave so that the 3D real time dynamic simulation of warship's time-related motions (horizontal swing, horizontal sway and head-sway) in this scene is realized and has got very good result.
Keywords:virtual reality  hydrodynamic model  warship's motion attitude  simulation
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