基于MSC．Patran和VR技术的半潜式平台虚拟图形构建方法  

Construction Method of Semi-submersible Virtual Graphic Based on MSC.Patran and VR Technology

作　　者：李洛东[1] 刘成名[1] 梁园华[1] 陈瑞峰[1] 林钟明[1] 

机构地区：[1]中国船级社海工技术中心,北京100007

出　　处：《中国造船》2009年第A11期33-40,共8页Shipbuilding of China

摘　　要：有限元软件已经广泛地应用于海洋工程的各个领域；但是，在可视化方面有限元软件略显不足。而虚拟现实技术作为一个新兴的技术，以其强大的图形处理能力越来越受到人们的重视，该技术在海洋工程方面的应用还相对滞后。本文从有限元模型为基础数据，提出了一种快速构建三维虚拟图形的方法。首先，分别提出了用PCL语言程序和Patran生成的BDF文件提取单元信息的方法；其次，介绍了利用VC＋＋和OpenGL混合编程，开发出图形显示软件，并且着重介绍了纹理映射和光照效果的渲染方法，同时，对程序的人机交互部分做了简单的说明；最后，以半潜式平台为例，以平台的有限元模型为基础，利用开发的软件，快速生成了该平台的虚拟三维图形。本文介绍的方法也适用于所有的有限元模型的虚拟图形的快速构建。The finite element software has been widely used in various fields of offshore engineering, but visualization of finite element software is inadequate. VR technology is an emerging technology. Its powerful graphics capability attracts more and more people＇s attention. But application of this technology in ocean engineering is lagging behind other fields. In this paper, a rapid construction of virtual 3d graphics methods is presented. First of all, methods of using PCL and BDF file are proposed respectively. Secondly, this paper introduces development of graphical display software by using VC＋＋ and OpenGL, and emphatically introduces texture mapping and lighting effect. At the same time, human-computer interaction in the software is described. Finally, taking a semi-submersible as an example, virtual three-dimensional graphic of the platform based on finite element model is rapidly generated by using the developed software. The method introduced-in this paper can be also applied to all of the finite element models.

关 键 词：VR技术 OPENGL 有限元 

分 类 号：TP311.5[自动化与计算机技术—计算机软件与理论] TP391.9[自动化与计算机技术—计算机科学与技术]