基于OpenGL的机械原理实验仿真软件开发

【作者】 侯宇；

【导师】 沈允文；

【作者基本信息】 西北工业大学 ， 机械设计与理论， 2001， 硕士

【摘要】 本文论述了如何在Wndows 9x/NT环境下，通过Visual C++调用OpenGL图形库中的函数，开发机械原理实验三维运动仿真CAI软件的方法。其目的是在计算机上虚拟实现传统的机械原理实验。 本文首先简要介绍了三维绘图所使用的主要工具OpenGL的功能、工作结构、绘制原理及其在Windows中的实现方法。阐述了机械原理实验仿真软件开发的总体设计思想、仿真软件的构架和各个功能模块及软件界面设计。研究了结合面向对象技术和三维可视化技术开发交互式运动仿真的原理和应用，并提出了相应的解决方案。 本课题完成了机械原理课程中几个典型实验的运动仿真。将该系统与机构运动学理论相结合，根据常用机构几何参数建立数学模型后，对其进行参数化三维造型，形成具有真实感的机构三维模型。然后根据输入的机构参数，采用运动的动画显示技术动态地绘制出机构的图像并展现机构在每一位置的运动情况，即做到实时三维变参数设计。研究的具体范围包括平面连杆机构、空间连杆机构、凸轮机构和齿轮机构等。 最后，本文就研究中取得的成果和存在的不足进行了总结，并对后续的相关研究提出了建议。更多还原

【Abstract】 This paper discusses how to develop the 3D graphical athletics simulation CAl software of mechanical experiment by Visual C++ calling the functions in OpenGL under the environment of Windows 9xJNT. The purpose of this paper is to fulfill vitual mechanical experiment in computer. Firstly, this paper concisly introduces OpenGL, which is a 3D graphical tool, about its function, working structute, drawing theory and implementing method in Windows system. Then it describes the total design thought , frame, function module and interface style of the simulation software of mechanical experiment. In the following, this paper discusses the principle and application of developing interactive athletics simulation with Objected-oriented programming and 3D visualization, and some relevant solutions are proposed. In this paper, the athletics simulation of some typical experiment in the course of Mechanicsl Theory are worked out. Through combining this system and the theory of mechanism kinematics, 3D parametric modeling of common mechanism is carried out after building mathematics model according to mechanism structure parameters, and 3D mechanism model with real effectiveness is formed. Then according to the mechanism parameter which user inputs, the software adopts athletic animation displaying technique to dynamically draw the image of mechanism, and shows the atheletic condition of the mechanism in each position, realizing real-time 3D parametric design. The scope of this research includes planar linkages, spatial linkages, cam mechanisms and gear mechanisms. At last, Progress and shortcoming of studies presented in this paper are concluded, ongoing research works are proposed.更多还原