An automatic 3D CAD model errors detection method of aircraft structural part for NC machining

被引：15

作者：

Huang, Bo ^{[1
]}

Xu, Changhong ^{[1
]}

Huang, Rui ^{[1
]}

Zhang, Shusheng ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Key Lab Contemporary Designing & Integrated Mfg T, Minist Educ, Xian 710072, Shaanxi, Peoples R China

来源：

JOURNAL OF COMPUTATIONAL DESIGN AND ENGINEERING | 2015年 / 2卷 / 04期

关键词：

Heuristic rule; CAD model errors; Aircraft structural part; Feature-based NC machining;

D O I：

10.1016/j.jcde.2015.06.008

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Feature-based NC machining, which requires high quality of 3D CAD model, is widely used in machining aircraft structural part. However, there has been little research on how to automatically detect the CAD model errors. As a result, the user has to manually check the errors with great effort before NC programming. This paper proposes an automatic CAD model errors detection approach for aircraft structural part. First, the base faces are identified based on the reference directions corresponding to machining coordinate systems. Then, the CAD models are partitioned into multiple local regions based on the base faces. Finally, the CAD model error types are evaluated based on the heuristic rules. A prototype system based on CATIA has been developed to verify the effectiveness of the proposed approach. (C) 2015 Society of CAD/CAM Engineers. Production and hosting by Elsevier.

引用

页码：253 / 260

页数：8