固体火箭技术2026，Vol.49Issue(2)：325-332,8.DOI:10.7673/j.issn.1006-2793.2026.02.018
基于三维点云的固体火箭发动机裙端面对接孔位置信息检测技术
Position information detection technology of SRM skirt end face joint hole based on 3D point cloud
王玉平 1王飞 2姚莉冰 1朱金薇 1耿靖源 1焦一程 1昝文媛1
作者信息
- 1. 陕西电器研究所,西安 710025
- 2. 航天动力技术研究院,西安 710025
- 折叠
摘要
Abstract
To address the issue of insufficient high-precision detection approaches for the spatial geometric coordinates of docking threaded holes on the skirt end face of solid rocket motor(SRM),which affects the assembly quality because the accuracy is solely ensured by the machining process,a rapid detection method for the position information of the docking threaded holes on the skirt end face based on 3D laser scanning technology is proposed.Firstly,an automatic tracking and scanning system was constructed by using a robot-driven 3D laser scanner to obtain the high-precision 3D point cloud of the skirt end face.Secondly,an improved moving least-squares(MLS)method based on KD-tree was used to optimize and process the point cloud to improve the accuracy of feature fitting.Finally,reverse modeling was carried out on the skirt end face of the 3D point cloud.After registering the reverse model of the skirt end face with the 3D point cloud,the relevant dimensions were quickly and automatically detected.The results show that the range of the six repeated test data is within 0.029 3°.Taking the average value of the six groups of test data as the true value,the data deviation is within 0.021 1°,and the RSD is less than 1%,which meets the requirements of engineering applications.关键词
固体火箭发动机/裙端面/装配测量/对接螺纹孔/三维点云/逆向建模Key words
solid rocket motor/skirt end face/assembly and measurement/butt-joint threaded hole/3D point cloud/reverse modeling分类
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王玉平,王飞,姚莉冰,朱金薇,耿靖源,焦一程,昝文媛..基于三维点云的固体火箭发动机裙端面对接孔位置信息检测技术[J].固体火箭技术,2026,49(2):325-332,8.
