飞机大尺寸组件外形数字化组合测量方法研究  

Research on Digital Combined Measurement Method of Aircraft Large Components Outline

作　　者：王巍[1] 李锐[1] 林俊盛 门宇 爱博 WANG Wei;LI Rui;LIN Junsheng;MEN Yu;BLACKIE Ebo(Shenyang Aerospace University,Shenyang 110136,China;AECC Shenyang Liming Aero Engine Co.,Ltd.,Shenyang 110043,China)

机构地区：[1]沈阳航空航天大学,沈阳110136 [2]中国航发沈阳黎明航空发动机有限责任公司,沈阳110043

出　　处：《航空制造技术》2024年第21期106-113,共8页Aeronautical Manufacturing Technology

基　　金：国防基础科研计划(JCKY2018410C004)。

摘　　要：现代飞机装配制造过程中,面对一些大尺寸组件的外形测量任务,单独使用手持三维激光扫描仪测量存在数据融合困难、累积误差较大等问题,因此,提出一种基于手持三维激光扫描仪与摄影测量系统的组合测量方法。利用摄影测量系统建立全局测量坐标系,通过相同视觉标志点匹配来获取局部视角测量坐标系与全局坐标系的变换关系,完成手持三维激光扫描仪局部扫描数据自动拼接。通过将测量数据模型与设计原型进行对比,获得大尺寸组件外形质量分析报告。在保证测量效率的条件下,组合测量方法可以提高型面测量精度。以某机前框组件外形精度的测量分析为例,测量精度可达23.6μm,证明了该方案的有效性和可行性。In the face of the shape measurement tasks of some large components in modern aircraft assembly and manufacturing process,problems such as difficulty in data fusion and large cumulative error may arise when using handheld 3D laser scanners alone.Therefore,a combined measurement method based on handheld 3D laser scanner and photogrammetry system is proposed.The photogrammetry system was used to establish the global measurement coordinate system,and the transformation relationship between the local visual angle measurement coordinate system and the global coordinate system was obtained by matching the same visual points to realize the automatic stitching of local scanning data of handheld 3D laser scanner.The quality analysis report of the large component shape was obtained by comparing the measurement data model with the design prototype.Under the condition of ensuring the measurement efficiency,the combined measurement method can improve the measurement accuracy of the profile surface.Taking the measurement and analysis of the contour accuracy of a certain type of the front frame component as an example,the measurement accuracy can reach 23.6μm,which proves that the scheme is effective and feasible.

关 键 词：大尺寸测量 数字化测量设备 三维激光扫描仪 数字摄影测量 组合测量 

分 类 号：V262.4[航空宇航科学与技术—航空宇航制造工程]