Method for Extracting Repair Amount of Skin Seam Based on Scan Line Point Cloud
YANG Jiaolong1, HUANG Xiang1, LI Shuanggao1, XIONG Tianchen2, ZHAO Ziyue3
1. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. Department of Manufacturing , Jiangxi Aerospace Haihong Test & Control Co., Ltd., Nanchang 330024, China
3. AVIC Beijing Changcheng Institute of Metrology & Measurement, Beijing 100095, China
In order to solve the problem of precision fitting in numerical control machining of the skin seam, a method for extracting repair amount of the skin seam was proposed based on scan line point cloud. Firstly, the point cloud was processed in blocks and the boundary feature point of each scan line was extracted by the distance from the point to the fitting plane. Then, the feature points were denoised using chord height difference method and the middle point was selected as the initial point to sort on both sides. Finally, the skin seam docking model and laser scanning boundary were analyzed and the feature points were extended to the docking direction to compensate. Field experiments showed that this method could provide exact repair amount with an accuracy of 0.06mm, which could meet the needs of numerical control machining.
引用本文:
杨角龙,黄翔,李泷杲,熊天辰,赵子越. 基于扫描线点云的飞机蒙皮修配量提取方法[J]. 航空制造技术, 2019, 62(10): 73-77.
YANG Jiaolong, HUANG Xiang, LI Shuanggao, XIONG Tianchen, ZHAO Ziyue. Method for Extracting Repair Amount of Skin Seam Based on Scan Line Point Cloud. Aeronautical Manufacturing Technology, 2019, 62(10): 73-77.