整体式叶轮曲面造型的分型及分向光顺方法  

Smoothing Methods Based Pattern and Direction for Surfaces Modeling of Integral Impeller

作　　者：赵军[1] 吴松林[1] 汪晓程 

机构地区：[1]西京学院研究生部,陕西西安710123 [2]空军驻深圳军代表处,广东深圳518052

出　　处：《机械设计与制造》2014年第8期115-117,共3页Machinery Design & Manufacture

基　　金：陕西省教育厅科研基金项目(11JK0880)

摘　　要：整体式叶轮是发动机的关键部件,叶片的三维造型又是叶轮设计的难点,同时也是影响发动机叶轮性能的重要因素。针对五轴数控加工中心加工整体式叶轮时叶片表面质量较差的问题,总结出了一套基于UG软件的曲线、曲面分型及分向光顺方法,使曲面造型的光顺效果得到显著地改善,从而提高了实际加工时整体式叶轮叶片的表面质量。实例表明,此方法便捷、有效,可明显改善叶片表面质量,满足工程实际的使用要求。为整体式叶轮叶片复杂曲面的模型建立提供了思路和方法。Integral impeller is a key part of engine, and the 3D modeling of blade is difficult in the impeller design, which is also an important factor that affects engine perfo^e. Aimed at improving the poorer quality of blade surfaces machined by five-axis NC machining center, the smoothing methods in which curves and surfaces are accordingly divided into different pattern and direction are presented on the basis of UG. Smoothing results of the surfaces modeling and the quality of integral impeller blade in actual machining are increased significantly. The experiment shows that the method is convenient and effective to improve blade surface quality and meet the demand of practical engineering. The design route and method are provided for the complex surfaces model of integral impeller blade.

关 键 词：五轴数控加工中心 整体式叶轮 表面质量 曲面光顺 

分 类 号：TH16[机械工程—机械制造及自动化] V232.4[航空宇航科学与技术—航空宇航推进理论与工程]