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Detection of aircraft touchdown using longitudinal acceleration and continuous wavelet transformation

Bakunowicz, Jerzy; Rzucidło, Paweł

Detection of aircraft touchdown using longitudinal acceleration and continuous wavelet transformation Thumbnail


Authors

Paweł Rzucidło



Abstract

The paper presents a methodology enabling the detection of aircraft touchdowns based on data obtained from accelerometers attached to the structural parts of the airframe in the cockpit or passenger compartment. Precise determination of the moment and place of touchdown of the main landing gear is challenging when analysing parameters such as height, flight speed and rate of descent. During the tests of the I-31T aircraft, it turned out that vibrations of the aircraft structure caused by the contact of the front and main landing gear with the ground have a repetitive character. In particular, this applies to longitudinal acceleration. The use of continuous wavelet analysis (CWT) allowed finding unique periodic features of the landing phenomenon that distinguish it from other forms of vibration occurring in individual flight phases. Ground and flight observations of experimental aeroplane MP-02 Czajka verified the proposed method of virtual touchdown detection. The results presented in this paper justify that this method may find broader application, especially for the light aircraft class.

Citation

Bakunowicz, J., & Rzucidło, P. (2020). Detection of aircraft touchdown using longitudinal acceleration and continuous wavelet transformation. Sensors, 20(24), 1-25. https://doi.org/10.3390/s20247231

Journal Article Type Article
Acceptance Date Dec 15, 2020
Online Publication Date Dec 17, 2020
Publication Date Dec 17, 2020
Deposit Date Mar 1, 2021
Publicly Available Date Mar 3, 2021
Journal Sensors
Print ISSN 1424-8220
Publisher MDPI
Peer Reviewed Peer Reviewed
Volume 20
Issue 24
Article Number 7231
Pages 1-25
DOI https://doi.org/10.3390/s20247231
Keywords virtual sensing; touchdown; detection; aeroplane; light aircraft; landing gear; continuous wavelet; accelerometers; acceleration; MEMS
Public URL https://uwe-repository.worktribe.com/output/7087401

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