Modeling of an aircraft structural health monitoring sensor network for operational impact assessment

Büchter, Kai-Daniel; Saez, Carlos Sebastia; Steinweg, Dominik

doi:10.1177/14759217211048149

Cited by 4 publications

(2 citation statements)

References 35 publications

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“…Aerospace industry aircraft operators receive a low return on the capital used ( Büchter et al, 2022 ), which requires them to adapt to operational demands and unveil efficient new aircraft. Cost optimization is heavily enforced to ensure that minimal growth is maintained.…”

Section: Related Workmentioning

confidence: 99%

Adaptive robotic system for the inspection of aerospace slat actuator mount

Morsi,

Mata,

Harrison

et al. 2024

Front. Robot. AI

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Introduction: Robotics uptake in the aerospace industry is low, mainly due to the low-volume/high-accuracy production that aerospace manufacturers require. Furthermore, aerospace manufacturing and assembly sites are often unstructured environments not specifically suitable for robots to operate in.Methods: This paper introduces a robotic visual inspection system using off-the-shelf components able to inspect the mounting holes for wing slat actuators without the need for fixed-coordinate programming; the part just needs to be left within reach of the robot. Our system sets one of the opposed pairs of mounting holes as a reference (the “datum”) and then compares the tilt of all other pairs of mounting holes with respect to it. Under the assumption that any deviation in the mounting hole tilt is not systematic but due to normal manufacturing tolerances, our system will either guarantee the correct alignment of all mounting holes or highlight the existence of misaligned holes.Results and Discussion: Computer-vision tilt measurements are performed with an error of below 0.03° using custom optimization for the sub-pixel determination of the center and radius of the mounting holes. The error introduced by the robot’s motion from the datum to each of the remaining hole pairs is compensated by moving back to the datum and fixing the orientation again before moving to inspect the next hole pair. This error is estimated to be approximately 0.05°, taking the total tilt error estimation for any mounting hole pair to be 0.08° with respect to the datum. This is confirmed by manually measuring the tilt of the hole pairs using a clock gauge on a calibrated table (not used during normal operation).

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Section: Related Workmentioning

confidence: 99%

Adaptive robotic system for the inspection of aerospace slat actuator mount

Morsi,

Mata,

Harrison

et al. 2024

Front. Robot. AI

View full text Add to dashboard Cite

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“…Structural components are a significant element in terms of inspection and hence maintaining airworthiness. MROs spend significant time checking structural components, which accumulates to typically ≈30% of the costs [4]. Note that hidden (non-visible) defects (damages) inside the structure hinder operation in the medium to longer term.…”

Section: Introductionmentioning

confidence: 99%

A State-of-the-Art Review of Non-Destructive Testing Image Fusion and Critical Insights on the Inspection of Aerospace Composites towards Sustainable Maintenance Repair Operations

2023

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Non-destructive testing (NDT) of aerospace structures has gained significant interest, given its non-destructive and economic inspection nature enabling future sustainable aerospace maintenance repair operations (MROs). NDT has been applied to many different domains, and there is a number of such methods having their individual sensor technology characteristics, working principles, pros and cons. Increasingly, NDT approaches have been investigated alongside the use of data fusion with the aim of combining sensing information for improved inspection performance and more informative structural health condition outcomes for the relevant structure. Within this context, image fusion has been a particular focus. This review paper aims to provide a comprehensive survey of the recent progress and development trends in NDT-based image fusion. A particular aspect included in this work is providing critical insights on the reliable inspection of aerospace composites, given the weight-saving potential and superior mechanical properties of composites for use in aerospace structures and support for airworthiness. As the integration of NDT approaches for composite materials is rather limited in the current literature, some examples from non-composite materials are also presented as a means of providing insights into the fusion potential.

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