3D Measurement and Quality Evaluation for Complex Aircraft Assemblies

LIU Shenglan; LUO Zhiguang; TAN Gaoshan; YE Nan; ZHANG Liyan

doi:10.7527/S1000-6893.2013.0047

ACTA AERONAUTICAET ASTRONAUTICA SINICA >

2013 , Vol. 34 >Issue 2: 409 - 418

DOI: https://doi.org/10.7527/S1000-6893.2013.0047

Material Engineering and Mechanical Manufacturing

3D Measurement and Quality Evaluation for Complex Aircraft Assemblies

LIU Shenglan ,
LUO Zhiguang ,
TAN Gaoshan ,
YE Nan ,
ZHANG Liyan

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1. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. Department of Manufacturing Engineering, Shenyang Aircraft Corporation, Shenyang 110850, China;
3. School of Mathematics and Physics, Anhui University of Technology, Ma’anshan 243002, China

Received date: 2012-03-14

Revised date: 2012-06-27

Online published: 2012-07-17

Supported by

National Natural Science Foundation of China (50875130, 50875126) *Corresponding author. Tel.: 025-84892004 E-mail: zhangly@nuaa.edu.cn

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Abstract

The 3D measurement and evaluation of aircraft assemblies can provide critical data in the manufacturing process for quality enhancement. It is a complicated task to measure a complex aircraft structure during manufacturing with the requirements of no auxiliary equipment for the measurement, no influence on the assembly process, and numerous other restrictions at the site. Difficulties in the task include measure the object in various ways, realize data alignment with low accumulation error, and get data from obstructed areas. In this paper, we propose an integrated metrology approach which combines photogrammetry, structure light scanning and optical tracking measurement with a handheld probe. The data from the three types of optical measurement is unified into one coordinate system by using some designated reference points. In order to achieve high accuracy in aligning the measurement data with the CAD model, the principles for choosing the registration points are proposed based on the theory of sensitivity analysis. To demonstrate the validity of our method, an aircraft fore fuselage is measured, and the data registration using our proposed principles is performed, which shows that our method is valid and it produces accurate results for the in-process quality evaluation of complex aircraft assemblies.

Key words： digital metrology; aircraft assembly; visual reference point; data registration; registration point

Cite this article

LIU Shenglan , LUO Zhiguang , TAN Gaoshan , YE Nan , ZHANG Liyan . 3D Measurement and Quality Evaluation for Complex Aircraft Assemblies[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013 , 34(2) : 409 -418 . DOI: 10.7527/S1000-6893.2013.0047

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