三维实体零件特征造型软件的开发与研究

【作者】 宋锦；

【导师】 张应中；

【作者基本信息】 大连理工大学 ， 模式识别与智能系统， 2002， 硕士

【摘要】 CAD(计算机辅助设计)是计算机技术在设计过程中的应用。在当今设计制造自动化高度发展的时代，CAD技术得到了迅速的发展和广泛的应用，并成为各个设计行业中不可或缺的辅助工具。 本课题是以开发功能完善、高效可靠、符合我国工程设计人员习惯的三维CAD实体造型设计软件为目的，采用面向对象的方法，以VisualC++为设计平台进行设计和开发的。 特征造型技术是人工智能技术应用于CAD的结果，它表达的产品信息完备且含有丰富的语义信息，是CAD／CAE／CAM／PDM系统集成的必要的和有力的基础。 课题基于JhSolid三维软件系统框架进行构建，以特征造型为系统的三维模型，以Parasolid三维实体造型内核为开发平台，用OpenGL作为三维图形输出的图形接口，开发了旋转、导动、放样三种基本的特征造型功能以及包括平键槽、花键槽、齿轮、链轮和皮带轮功能的标准零件特征造型方法。 经过程序编制，调试和反复测试，证实该程序成功地实现了上述功能，验证了其方法的正确性与实用性。更多还原

【Abstract】 CAD ( Computer Aided Design )is the application of the computer in the course of designing of technology. Designing and manufacturing automation era of high development nowadays, CAD technology gets fast development and extensive application, and becomes the indispensable handling tool in each design trade.Based on Visual C++ design platform, this paper adopts object-oriented method to design and develop the sofeware of 3D solid modeling. And its purpose is exploring the design software with perfect function high efficiency and reliable capability , as well as according with habits of project designers of our country.The technology of feature modeling is the result that the artificial intelligence technology applies to CAD. The product information that it expresses is not only complete but also contains the abundant semanteme information, which makes the technology of feature modeling the essential and effective foundation of system integration of CAD/CAE/CAM/PDM.This paper is based on 3D feature modeling software systematic frame of JhSolid, and it regards 3D entity modelling kernel of Parasolid as the exploring platform, uses OpenGL as the figure interface. During this period, this subject has mainly developped three basic function of feather modeling: Rotate, Swept and Loft, and feather modeling method of standard part including Flat key, Spline, Gear, Sprocket and Belt pulley function.Worked out by the procedure, debugs and test repeatedly, it has verified that this procedure has succeeded in realizing above-mentioned functions, which prove the correctness and feasibility of this method.更多还原