At CAD 三维设计 毕业论文.doc

摘 要 AutoCAD2006是当今最流行的设计软件，现代的很多工程设计院都使用CAD为各自项目做设计，因为它有许多传统的平面二维设计所无法比拟的优越性。平面二维CAD技术虽然能够提高作图效率但还是像传统的手工绘图那样用投影图来描述物体。而三维技术则利用计算机提供的一个模拟的三维空间使工程师们可以直接在这个三维空间里建造物体的模型，表达自己的设计意图，因此对几何形体的描述比传统的二维技术更真实、更准确、更全面。 主要以三维设计技术为论述核心，借鉴三维设计在工厂设计领域中应用的技术特点和经验成果，开发探索在《锅炉原理》教学专业课上的辅助教学功能。三维设计技术在工厂设计领域已经普及应用，然而长期以来，《锅炉原理》专业课教学上，缺少直观逼真的大型锅炉三维教学模型，学生对于锅炉的原理理解比较抽象，难以直观领会和快速掌握教学内容。本课题的完成，将能够为《锅炉原理》教学提供详实的锅炉结构设备三维模型，在教学过程中为学生提供直观的大型锅炉结构设备的模拟组装过程，了解锅炉的结构与其各个设备的详细结构，使学生迅速而扎实地掌握锅炉原理的基础知识，加强对锅炉原理的理性和感性认识。 针对300MW直流锅炉的本体结构，以及本体设备。其中包括：炉膛、水冷壁、燃烧器、过热器、再热器、省煤器和空气预热器等锅炉主要结构设备组成部分。以及整体锅炉框架等加深印象,对以后工作、学习都有着非常直观、深入的了解。 关键词：三维设计；AutoCAD ；锅炉设备 Abstract At present ,auto CAD2006 is one of the most popular design softwares .Many contemporary engineeering design institues design their own projects with CAD.Because it has more incomparable superiority than the traditional two-dimensional design .Although two-dimensional CAD technology may improve the mapping efficiency ,but it describes the object with projection just as the traditional manual mapping .While three-dismensional technology utilizes a mock three-dimensional space provided by compture .The engineers may directly construct the model and express their design intention in this space .Therefore ,the description of geometric shape is more accurate and over-all than the traditional two –dimensional technique .Boiler 3Dmodel design just utilizes the superiority of the design to help the people to understand acculatly the structure and dispositions of 300wm boiler ,which can deepen the impression to the main equipments ,such as superheater,reheater ,economizer ,air preheater and whole boiler framework .Go a step further to learn about directly and deeply latter work and study . This topic mainly take 3D(three-dimensional) design technology as the dissertation core, using the application technical characteristic and the experience achievement of three-dimensional design in the plant design domain for reference, in order to develop and search afte