固体火箭技术2024，Vol.47Issue(2)：278-284,7.DOI:10.7673/j.issn.1006-2793.2024.02.017
基于三维激光点云的固体火箭发动机喷管零部件尺寸测量方法研究
Research on dimensional measurement method of SRM nozzle parts based on 3D laser point cloud
马智睿 1朱金薇 1耿靖源 1王玉平 1乔娅婷 1昝文媛 1袁玉华2
作者信息
- 1. 陕西电器研究所,固体火箭发动机先进检测技术中心,西安 710025
- 2. 陕西中天火箭技术股份有限公司,西安 710025
- 折叠
摘要
Abstract
In order to realize the efficient and accurate non-contact measurement of the size small parts of solid rocket motor nozzle,the 3D laser scanning technology was used to measure the size of upper lugs of nozzle,and the point cloud data on the front and back sides were accurately spliced through the point cloud coarse registration and fine registration,and the Octree algorithm was combined with the traditional iterative closest point registration method,which optimized the search process and excluded abnormal matching point pairs.Finally,the registered point cloud model was imported into Geomagic ControlX to reconstruct the 3D model for measurement.The results show that:Compared with the three-coordinate measurement method,the 3D laser scanning accuracy of 36 different upper lugs is basically maintained in the range of±0.05 mm;Fifteen single-piece upper lugs were measured with an aver-age time of 4.98 s and a repeatability of less than 2%;both the measurement accuracy and repeatability meet the process specifica-tions and requirements.关键词
喷管/小型零部件/三维激光扫描/尺寸测量/点云数据/点云配准Key words
nozzle/small part/three-dimensional laser scanning technology/dimensional measurement/point cloud data/point cloud registration分类
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马智睿,朱金薇,耿靖源,王玉平,乔娅婷,昝文媛,袁玉华..基于三维激光点云的固体火箭发动机喷管零部件尺寸测量方法研究[J].固体火箭技术,2024,47(2):278-284,7.
