三维激光扫描技术应用于机翼微变形检测  

Application of 3D laser scanning technology to wing micro deformation detection

作　　者：朱赞 姚钘 王建琦 李阳 龙诗科 ZHU Zan;YAO Xing;WANG Jianqi;LI Yang;LONG Shike(School of Aeronautics and Astronautics,Guilin University of Aerospace Technology,Guilin 541004,China;Guangxi Colleges and Universities Key Laboratory of Unmanned Aerial Vehicle Remote Sensing,Guilin University of Aerospace Technology,Guilin 541004,China)

机构地区：[1]桂林航天工业学院航空宇航学院,广西桂林541004 [2]广西高校无人机遥测重点实验室,广西桂林541004

出　　处：《测绘通报》2023年第5期115-119,共5页Bulletin of Surveying and Mapping

基　　金：国家自然科学基金(61966010);桂林航天工业学院校级基金(XJ20KT07)。

摘　　要：飞机飞行过程中,机翼和机身通常会产生人眼无法直接识别的局部和结构性微小变形,进而损害飞机的飞行气动性能。针对这一问题,本文将能达到毫米级逆向建模的三维激光扫描技术应用于飞机机翼的微变形检测中,通过设计的方案对整个过程的点云获取、点云配准、滤波去噪、封装建模和变形指标提取等各个技术环节进行了探索,并验证了整个技术流程的可行性。同时,通过对比分析试验对三维激光扫描技术应用于机翼微变形检测的精度进行了评定,试验结果表明该技术的综合探测精度可达0.12 mm,能够达到试验扫描仪器的标称精度。During the flight of an aircraft,the wing and fuselage usually produce local and structural small deformation that can not be directly recognized by human eyes,which will damage the flight aerodynamic performance of the aircraft.To solve this problem,in the research,the 3D laser scanning technology which can achieve millimeter reverse modeling is applied to the micro deformation detection of aircraft wing.Through the designed scheme,the technical links of the whole process,such as point cloud acquisition,point cloud registration,filter denoising,packaging modeling and deformation index extraction,are explored,and the feasibility of the whole technical process is verified.At the same time,the accuracy of 3D laser scanning technology applied to wing micro deformation detection is evaluated through comparative analysis experiments.The experimental results show that the comprehensive detection accuracy of this technology can reach 0.12 mm,which can reach the nominal accuracy of the experimental scanning instrument.

关 键 词：三维激光扫描 点云处理 机翼模型 变形检测 可靠性分析 

分 类 号：P237[天文地球—摄影测量与遥感]