典型文献
3D Microdisplacement Monitoring of Large Aircraft Assembly with Automated In Situ Calibration
文献摘要：
Three-dimensional(3D)microdisplacement monitoring plays a crucial role in the assembly of large air-craft.This paper presents a broadly applicable high-precision online 3D microdisplacement monitoring method and system based on proximity sensors as well as a corresponding in situ calibration method,which can be applied under various extreme working conditions encountered in the aircraft assembly process,such as compact and obstructed spaces.A 3D monitoring model is first established to achieve 3D microdisplacement monitoring based only on the one-dimensional distances measured by proximity sensors,which concerns the extrinsic sensor parameters,such as the probe base point(PBP)and the unit displacement vector(UDV).Then,a calibration method is employed to obtain these extrinsic parameters with high precision by combining spatial transformation principles and weighted optimization.Finally,calibration and monitoring experiments performed for a tailplane assembly process are reported.The cali-bration precision for the PBP is better than±10 pm in the X and Y directions and±2 pm in the Z direction,and the calibration precision for the UDV is better than 0.07°.Moreover,the accuracy of the 3D microdis-placement monitoring system can reach±15 pm.In general,this paper provides new insights into the modeling and calibration of 3D microdisplacement monitoring based on proximity sensors and a precise,efficient,and low-cost technical means for performing related measurements in compact spaces during the aircraft assembly process.
文献关键词：
中图分类号：
作者姓名：
Zhenyuan Jia;Bing Liang;Wei Liu;Kun Liu;Jianwei Ma
作者机构：
School of Mechanical Engineering,Dalian University of Technology,Dalian 116024,China
文献出处：
引用格式：
[1]Zhenyuan Jia;Bing Liang;Wei Liu;Kun Liu;Jianwei Ma-.3D Microdisplacement Monitoring of Large Aircraft Assembly with Automated In Situ Calibration)[J].工程（英文）,2022(12):105-116
A类：
Microdisplacement,microdisplacement,UDV,tailplane,microdis
B类：
Monitoring,Large,Aircraft,Assembly,Automated,In,Situ,Calibration,Three,dimensional,monitoring,plays,crucial,role,assembly,large,This,paper,presents,broadly,applicable,high,precision,online,method,system,proximity,sensors,well,corresponding,situ,calibration,which,can,applied,under,various,extreme,working,conditions,encountered,aircraft,process,such,compact,obstructed,spaces,first,established,achieve,only,one,distances,measured,by,concerns,extrinsic,parameters,probe,point,PBP,unit,vector,Then,employed,obtain,these,combining,spatial,transformation,principles,weighted,optimization,Finally,experiments,performed,are,reported,better,than,pm,directions,Moreover,accuracy,reach,general,this,provides,new,insights,into,modeling,precise,efficient,low,cost,technical,means,performing,related,measurements,during
AB值：
0.478326
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