基于CATIA的A级曲面定义及其评价方法研究  

Definition of class-A surface and its evaluating methods based on CATIA

作　　者：武振锋[1] 马宁波[1] 杨欣翥[1] 袁玄成[1] 

机构地区：[1]兰州交通大学机电工程学院,兰州730070

出　　处：《现代制造工程》2012年第5期60-62,91,共4页Modern Manufacturing Engineering

基　　金：兰州交通大学青年科学基金资助项目(2011018);兰州交通大学学生创新实验计划资助项目(201205)

摘　　要：在曲面类零件设计领域,高质量的A级曲面是后续的小批量试制、大批量生产和安装能够顺利进行的基本前提。A级曲面的创建包括单曲面、基础曲面与桥接曲面拼接而成的复合曲面这两种方式,并且构建空间曲线、曲面采用的都是B-Spline方法。结合不同的工程案例,提出了分析曲面质量的控制顶点法、多截面曲率梳法、高亮(斑马线)分析法和高斯曲率评价法,并对每种评价方法的侧重点进行了讨论。曲面质量评价分析结果可为后续的零件加工制造提供可靠的理论依据。In the domain of designing surface parts,high-quality class-A surface is the basic precondition for the following small amount trial-manufacturing,large batch production and assembly.The creating method of class-A surface includes single surface and composite surface which matched by basic surface and blend surface.The B-Spline method is adopted in creating special curve and space.Taking the different engineering case,puts forward four methods including controlling points,multiple curvature comb,isophotes and Gaussian curvature,and furthermore discusses the key point of each evaluating methods.The conclusion of surface evaluating will provide reliable and theoretical evidence for the subsequent manufacturing.

关 键 词：曲面零件 A级曲面 数学方法 评价方法 CATIA软件 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]