一种直接基于三维CAD模型的复杂曲面轮廓度误差评定方法  

Evaluation Method of Complex Curved Surface Profile Error Based on Three-dimensional Model

作　　者：郑伟连 杨敏洁[1] 刘睿[1] 段桂江[1] 

机构地区：[1]北京航空航天大学机械工程及自动化学院,北京100191

出　　处：《航空精密制造技术》2014年第5期14-17,共4页Aviation Precision Manufacturing Technology

基　　金：科工技2010-1536项目;某民机数字化项目

摘　　要：面向数字化检测环境,提出了一种基于三维模型的曲面轮廓度误差评定方法。该方法首先在理论模型所处的CAD环境中创建测点特征,再直接求点到三维模型上理论曲面的距离,最后通过单纯形法对复杂曲面轮廓度误差进行评定。最后通过计算实例验证了该方法的有效性。To adapt digital detection environment, a method to evaluate the surface profile error based on three-dimensional model is put forward. The measuring point features are created by using the three-dimensional model in CAD environment. The distance between measuring points and the three-dimensional model is calculated. The surface profile error is evaluated by simplex method. An instance is given to verify the method.

关 键 词：三维模型 曲面轮廓度误差 单纯形法 几何拓扑解析 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]