中国机械工程2024，Vol.35Issue(6)：1044-1051,8.DOI:10.3969/j.issn.1004-132X.2024.06.010
旋翼桨叶扭角的数字化柔性检测方法
Digital Flexible Detection Method for Rotor Blade Twist Angles
唐毓阳 1陈龙 1肖庆东1
作者信息
- 1. 中国航空制造技术研究院数字化制造技术航空科技重点实验室,北京,100024
- 折叠
摘要
Abstract
The twist angles of helicopter rotor blades had a direct impact on the performance and service life of the blades.However,the traditional methods of detecting twist angles relied heavily on specialized fixtures and measuring tools,which were inflexible,inefficient and inaccurate.To address this issue,a digital flexible detection method for rotor blade twist angles was proposed,and a detec-tion system for rotor blade twist angles was designed and constructed.This system enabled automatic detection of rotor blade twist angles and might greatly improve detection efficiency and accuracy to meet the detection requirements of different types of rotor blades.A twist angle calculation method was proposed based on key section local contour registration.The point clouds on the surfaces of rotor blades were collected by laser scanning sensor,a point cloud registration method was employed by combining coarse registration based on principal component analysis(PCA)algorithm and fine regis-tration based on improved iterative closest point using K-dimension tree(KD-ICP)algorithm to accu-rately and efficiently calculate the twist angle values,which provided a general and effective calcula-tion method for rotor blade twist angle calculation.Finally,experiments were conducted on a certain type of rotor blade as the detection object.The results show that the maximum error of twist angle de-tection is as 54″,and the repeatability accuracy is as 18″,which proves the effectiveness and accuracy of the systems.关键词
扭角/旋翼桨叶/数字化检测/激光扫描/点云配准Key words
twist angle/rotor blade/digital detection/laser scanning/point cloud registration分类
机械制造引用本文复制引用
唐毓阳,陈龙,肖庆东..旋翼桨叶扭角的数字化柔性检测方法[J].中国机械工程,2024,35(6):1044-1051,8.
