压力容器三维CAD设计方法的研究

发布时间：2018-03-22 17:54

本文选题：压力容器　切入点：CAD　出处：《沈阳工业大学》2011年硕士论文　论文类型：学位论文

【摘要】：压力容器是石油、化工、冶金和能源等领域广泛使用设备。目前压力容器CAD设计主要应用AutoCAD的平面设计功能,设计过程繁琐,效率低。随着计算机技术的发展,CAD技术综合了计算机强大的计算功能和高效的图形处理功能,集最先进的产品设计理论与方法为一体,最大限度地实施着设计工作中的“自动化”。三维设计具有形象、高效的特点,设计基于AutoCAD压力容器三维设计插件是CAD技术研究近年来关注的焦点。本文围绕着压力容器三维设计展开研究,在AutoCAD平台上,采用VBA开发技术,实现了以面域、旋转为主要方法的封头建模；以拉伸为主的筒体、接管建模；以旋转、拉伸、布尔运算为主要方法的法兰建模；以旋转、坐标变换为主的弯头等组件的三维自动化建模过程,大大提高了设计者的设计效率。在法兰建模中深入应用ADO数据库连接技术,使Access数据库与AutoCAD环境有机结合起来,设计中无须设计者查询相关标准,实现设计的高效率同时还便于系统维护。研究中设计了getwcs和getactiveucs函数模块,实现了世界坐标系与用户坐标系自动识别和转换技术,克服了VBA语言开发系统的局限性。本文还对压力容器组件建模插入点设计进行了研究,设计了AutoCAD环境下的压力容器强度校核软件,同时还在三维图库建立等方面进行了有效尝试,提高了设计的综合应用性能。研究的结果对化工行业CAD自动化设计具有很好的借鉴意义。
[Abstract]:Pressure vessel is widely used in the fields of petroleum, chemical industry, metallurgy and energy. At present, the design of pressure vessel CAD mainly uses the graphic design function of AutoCAD, and the design process is tedious. Low efficiency. With the development of computer technology, CAD technology integrates the powerful computing function of computer and the efficient graphics processing function, and integrates the most advanced product design theory and method. 3D design has the characteristics of image and high efficiency. The design of 3D design plug-in based on AutoCAD pressure vessel is the focus of CAD technology research in recent years. In this paper, the three-dimensional design of pressure vessel is studied. On the platform of AutoCAD, VBA development technology is used to realize the modeling of the head with the main method of area and rotation, the tube with drawing as the main method, the tube as the main body, the tube with the rotation, the drawing as the main method. Boolean operation is the main method of flange modeling, and the 3D automatic modeling process of the components, such as rotation and coordinate transformation, greatly improves the design efficiency of the designer. The application of ADO database connection technology in flange modeling makes the Access database and AutoCAD environment combine organically. The design does not need the designer to inquire the related standards, so the design is efficient and convenient for system maintenance. In the research, getwcs and getactiveucs function modules are designed to realize the automatic recognition and conversion technology between the world coordinate system and the user coordinate system, which overcomes the limitations of the VBA language development system. This paper also studies the design of pressure vessel component modeling insertion point, designs the intensity check software of pressure vessel under AutoCAD environment, and makes an effective attempt in the establishment of 3D map library, etc. The comprehensive application performance of the design is improved. The results of the study have a good reference significance for CAD automation design in chemical industry.
【学位授予单位】：沈阳工业大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH49;TP391.72

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