Acoustic Emission-Based Detection of Impacts on Thermoplastic Aircraft Control Surfaces: A Preliminary Study

The reliability of aircraft control surfaces, constructed from thermoplastic materials, can be affected by impacts from airborne particles. Recognizing the exact position of such impacts is essential for correctly estimating the resulting damage. This research intended to address the issue by introd...

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Main Authors: Li Ai, Sydney Flowers, Tanner Mesaric, Bryson Henderson, Sydney Houck, Paul Ziehl
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/11/6573
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author Li Ai
Sydney Flowers
Tanner Mesaric
Bryson Henderson
Sydney Houck
Paul Ziehl
author_facet Li Ai
Sydney Flowers
Tanner Mesaric
Bryson Henderson
Sydney Houck
Paul Ziehl
author_sort Li Ai
collection DOAJ
description The reliability of aircraft control surfaces, constructed from thermoplastic materials, can be affected by impacts from airborne particles. Recognizing the exact position of such impacts is essential for correctly estimating the resulting damage. This research intended to address the issue by introducing an innovative structural health monitoring solution capable of autonomously detecting and localizing impacts using acoustic emission monitoring. The objective of this research is to investigate the application of AE for the localization of impacts on aircraft elevators using machine learning techniques, specifically regression algorithms. To achieve this goal, two algorithms, linear regression, and random forest, were employed for predicting the impact locations based on AE signals. The performance of each algorithm was validated on a thermoplastic composite aircraft elevator. Results indicated that both linear regression and random forest models show high accuracy in predicting the impact locations. The random forest model, with an R<sup>2</sup> value of 0.98616 and an RMSE of 0.6778, outperformed the linear regression model, which exhibited an R<sup>2</sup> value of 0.9361 and an RMSE of 1.4614.
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spelling doaj.art-7f05be57b4c44fbba5c571dafa6839922023-11-18T07:33:59ZengMDPI AGApplied Sciences2076-34172023-05-011311657310.3390/app13116573Acoustic Emission-Based Detection of Impacts on Thermoplastic Aircraft Control Surfaces: A Preliminary StudyLi Ai0Sydney Flowers1Tanner Mesaric2Bryson Henderson3Sydney Houck4Paul Ziehl5Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC 29201, USADepartment of Integrated Information Technology, University of South Carolina, Columbia, SC 29201, USADepartment of Integrated Information Technology, University of South Carolina, Columbia, SC 29201, USADepartment of Mechanical Engineering, University of South Carolina, Columbia, SC 29201, USADepartment of Mechanical Engineering, University of South Carolina, Columbia, SC 29201, USADepartment of Civil and Environmental Engineering, University of South Carolina, Columbia, SC 29201, USAThe reliability of aircraft control surfaces, constructed from thermoplastic materials, can be affected by impacts from airborne particles. Recognizing the exact position of such impacts is essential for correctly estimating the resulting damage. This research intended to address the issue by introducing an innovative structural health monitoring solution capable of autonomously detecting and localizing impacts using acoustic emission monitoring. The objective of this research is to investigate the application of AE for the localization of impacts on aircraft elevators using machine learning techniques, specifically regression algorithms. To achieve this goal, two algorithms, linear regression, and random forest, were employed for predicting the impact locations based on AE signals. The performance of each algorithm was validated on a thermoplastic composite aircraft elevator. Results indicated that both linear regression and random forest models show high accuracy in predicting the impact locations. The random forest model, with an R<sup>2</sup> value of 0.98616 and an RMSE of 0.6778, outperformed the linear regression model, which exhibited an R<sup>2</sup> value of 0.9361 and an RMSE of 1.4614.https://www.mdpi.com/2076-3417/13/11/6573thermoplastic compositeimpactsacoustic emissionstructural health monitoring
spellingShingle Li Ai
Sydney Flowers
Tanner Mesaric
Bryson Henderson
Sydney Houck
Paul Ziehl
Acoustic Emission-Based Detection of Impacts on Thermoplastic Aircraft Control Surfaces: A Preliminary Study
Applied Sciences
thermoplastic composite
impacts
acoustic emission
structural health monitoring
title Acoustic Emission-Based Detection of Impacts on Thermoplastic Aircraft Control Surfaces: A Preliminary Study
title_full Acoustic Emission-Based Detection of Impacts on Thermoplastic Aircraft Control Surfaces: A Preliminary Study
title_fullStr Acoustic Emission-Based Detection of Impacts on Thermoplastic Aircraft Control Surfaces: A Preliminary Study
title_full_unstemmed Acoustic Emission-Based Detection of Impacts on Thermoplastic Aircraft Control Surfaces: A Preliminary Study
title_short Acoustic Emission-Based Detection of Impacts on Thermoplastic Aircraft Control Surfaces: A Preliminary Study
title_sort acoustic emission based detection of impacts on thermoplastic aircraft control surfaces a preliminary study
topic thermoplastic composite
impacts
acoustic emission
structural health monitoring
url https://www.mdpi.com/2076-3417/13/11/6573
work_keys_str_mv AT liai acousticemissionbaseddetectionofimpactsonthermoplasticaircraftcontrolsurfacesapreliminarystudy
AT sydneyflowers acousticemissionbaseddetectionofimpactsonthermoplasticaircraftcontrolsurfacesapreliminarystudy
AT tannermesaric acousticemissionbaseddetectionofimpactsonthermoplasticaircraftcontrolsurfacesapreliminarystudy
AT brysonhenderson acousticemissionbaseddetectionofimpactsonthermoplasticaircraftcontrolsurfacesapreliminarystudy
AT sydneyhouck acousticemissionbaseddetectionofimpactsonthermoplasticaircraftcontrolsurfacesapreliminarystudy
AT paulziehl acousticemissionbaseddetectionofimpactsonthermoplasticaircraftcontrolsurfacesapreliminarystudy