Metrological comparison of LiDAR and photogrammetric systems for deformation monitoring of aerospace parts

E Aldao,H González-Jorge,J.A Pérez

doi:10.1016/j.measurement.2021.109037

E Aldao, H González-Jorge + Show 1 more

Open Access

https://doi.org/10.1016/j.measurement.2021.109037

Copy DOI

Journal: Industrial Metrology	Publication Date: Jan 22, 2021
Citations: 16	License type: cc-by

Affiliation: Universidade de Vigo

Abstract

The inspection of airframes and aerodynamic surfaces is a very important task in aeronautical maintenance. Traditionally, this labor has always been carried out by maintenance personnel, who manually checked all the parts of the fuselage, which is a great cost for the airlines. This article evaluates the feasibility of implementing low cost portable 3D scanning systems to perform these inspection tasks easily and accurately. A metrological comparison among a LIDAR Kinect One sensor, a single digital camera Sony Alpha 6000 using photogrammetry software and a stereoscopic ZED camera was performed. Their behavior is characterized as well as their main sources of error to determine which technology is the most suitable for inspecting aeronautical surfaces. Kinect LIDAR sensor shows the most promising results and opens the possibility to apply this technology to aircraft maintenance tasks in future.

Highlights

Preventive maintenance is an essential task to avoid any type of failure and ensure the correct operation of any machine or structure
In the aerospace industry this factor is truly critical, since some flaws can have catastrophic consequences. Defects such as deformations and dents can be a risk as they modify the tension distribution concentrating the stresses in certain areas which may help crack propagation [1]
No commercial photogrammetry software is available on the laboratory, so Meshroom free software is used to obtain three-dimensional re constructions from a series of photographs

Summary

Introduction

Preventive maintenance is an essential task to avoid any type of failure and ensure the correct operation of any machine or structure. In the aerospace industry this factor is truly critical, since some flaws can have catastrophic consequences. Defects such as deformations and dents can be a risk as they modify the tension distribution concentrating the stresses in certain areas which may help crack propagation [1]. Certain areas such as propellers, nose cone of fuselage and the leading edge of wings are susceptible to bend damage due to bird strikes, meteorological factors such as lightning strikes or hail impacts [2,3,4]. The age of the inspectors is quite a relevant factor, since the detection capacity decreases with age [6,7]

Methods

Results

Conclusion