Prediction of Landing Gear Loads Using Machine Learning Techniques

Elizabeth Cross, Keith Worden, Pia N Sartor, Paul Southern

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

4 Citations (Scopus)
163 Downloads (Pure)

Abstract

This work aims to establish if significant correlations exist between flight parameters recorded on production aircraft and the loads induced in the landing gear by employing accurate nonlinear regression models developed using machine learning techniques. The mathematical modelling approach used in the development of the regression model employs both classical Multi-Layer Perceptron (MLP) and Bayesian MLP neural networks. The MLP neural networks in this work were developed using landing gear drop test data. The inputs from the drop test data include shock absorber travel, tyre closure, shock absorber pressure, wheel speed, drop carriage accelerations, landing gear accelerations, while the initial output target to be predicted is the landing gear side stay load. To demonstrate the fidelity of the model and avoid issues with overfitting to the data, the landing gear drop test data was divided into training, validation and test data sets, which did not overlap. The performance of the neural network is defined by the Mean-Square Error (MSE) between model predictions and the measured targets. In the preliminary model development, the MSE for the classic MLP implementation was 8.53% for the testing set, which is a very encouraging result. The Bayesian MLP was also found to perform well. In conclusion, the neural network developed at this preliminary stage has performed well for the prediction of the side stay load in the drop test data.

Original languageEnglish
Title of host publicationStructural Health Monitoring 2012
Subtitle of host publicationProceedings of the 6th European Workshop on Structural Health Monitoring (EWSHM 2012)
PublisherDeutsche Gesellschaft für Zerstörungsfreie Prüfung
Pages1056-1063
Number of pages8
Volume2
ISBN (Print)9783940283412
Publication statusPublished - 1 Dec 2012
Event6th European Workshop on Structural Health Monitoring 2012, EWSHM 2012 - Dresden, United Kingdom
Duration: 3 Jul 20126 Jul 2012

Conference

Conference6th European Workshop on Structural Health Monitoring 2012, EWSHM 2012
CountryUnited Kingdom
CityDresden
Period3/07/126/07/12

Keywords

  • Other Methods
  • Landing Gear
  • Machine Learning

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