船舶水动力性能虚拟测试系统的设想 (范佘明; 缪国平; 杨素军; 陆志妹)

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,WWh/p#]Y?0船舶水动力性能虚拟测试系统的设想

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#DIi3y7N7oQh,M0【作者】范佘明; 缪国平; 杨素军; 陆志妹 【作者单位】中国船舶与海洋工程设计研究院; 上海交通大学水利论文R6].R^ {~0}9J/D

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3X1K:ep.A*~)Rj0【论文摘要】 介绍了虚拟测试系统的定义、分类和作用,回顾了虚拟测试技术在船舶领域的应用. 建立了船舶水动力性能虚拟测试系统的框架,系统由资源层、子系统层和应用层组成,其核心是用于模拟数字船舶在虚拟海况中航行的模拟器.分析了系统的两项关键技术,印数学模型和虚拟现实技术.数学模型用于模拟船舶在波浪中的操纵运动,由静水中的操纵运动与波浪中的摇摆运动的叠加生成,其中不规则波中的船舶运动通过规则波中运动的叠加计算.虚拟现实技术主要用于模拟器的研制,本研究简要介绍了海浪生成、渲染技术、图像校正与融合等关键技术.水利论文i8w!S/m$J

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【英文论文摘要】 Virtual Testing (VT) is a new technology developed in recent decade.The definition, category and function of VT are introduced and the applications of VT technology in shipbuilding industry are reviewed. The frame of a VT system for ship hydrodynamic performances has been established,which consists of three layers.The first layer is resource layer that involves different types of database, general codes,tools for model developing,testing procedures,etc.The second layer is subsystem layer.Several subsystems for resistance,propulsion,seakeeping and manoeuvring virtual experiment are included in this layer.The third layer is application layer for virtual sea trial.This layer is an integrated full-scale VT system based on resource and subsystem layers.The core of the VT system is a navigation simulator for modeling the sea trial of a digital ship under certain virtual environment. The process for constructing a VT system is explained.It is pointed that the VT system should be validated,upd...更多ated and added continually to meet the new requirement of ship design. The solutions of two key techniques,numerical modeling and virtual reality,are presented.The numerical model to simulate manoeuvring motion in waves is considered by simultaneously superimposing ordinary manoeuvring motion and wave-induced ship motion.In order to save computation,ship motions in irregular waves are calculated by the summation of ship motion for each regular wave.in addition,several key techniques of the virtual reality applied in the navigation simulator,such as high performance wave model,distributed rending method,multi-projector edge blending and calibration techniques,are discussed as well.  还原水利论文)M;Z^?7g

5\8q~E:M1Y b*iC i(]0【论文关键词】 虚拟测试系统; 航海模拟器; 数学模型; 虚拟现实技术水利论文#p/x0uI'Bt
【英文论文关键词】 virtual testing system; navigation simulator; numerical modeling; virtual reality technology

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TAG: 船舶 缪国平 陆志妹 杨素军 佘明
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