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An investigation of an active landing gear system to reduce aircraft vibrations caused by landing impacts and runway excitations

Wang, H., Xing, J.T., Price, W.G. and Li, W. (2008) An investigation of an active landing gear system to reduce aircraft vibrations caused by landing impacts and runway excitations Journal of Sound and Vibration, 317, (1-2), pp. 50-66. (doi:10.1016/j.jsv.2008.03.016).

Record type: Article

Abstract

A mathematical model is developed to control aircraft vibrations caused by runway excitation using an active landing gear system. Equations are derived to describe the integrated aircraft – active system. The nonlinear characteristics of the system are modelled and it is actively controlled using a Proportional Integral Derivative (PID) strategy. The performance of this system and its corresponding passive system are compared using numerical simulations. It is demonstrated that the impact loads and the vertical displacement of the aircraft’s centre of gravity caused by landing and runway excitations are greatly reduced using the active system, which result in improvements to the performance of the landing gear system, benefits the aircraft’s fatigue life, taxiing performance, crew / passenger comfort and reduces requirements on the unevenness of runways.

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More information

Submitted date: 20 June 2007
Published date: 12 May 2008
Keywords: active landing gear, aircraft vibration, viration control, runway excitation, PID control, landing gear simulation

Identifiers

Local EPrints ID: 50716
URI: http://eprints.soton.ac.uk/id/eprint/50716
ISSN: 0022-460X
PURE UUID: 7d622f27-8628-484d-bbfb-e860c0f89309

Catalogue record

Date deposited: 19 Aug 2008
Last modified: 17 Jul 2017 14:50

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Contributors

Author: H. Wang
Author: J.T. Xing
Author: W.G. Price
Author: W. Li

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