Bifurcation analysis of landing gear shimmy using flexible multibody models

Camiel J.J. Beckers, A. Emre Öngüt, Bert Verbeek, Rob H.B. Fey, Yves Lemmens, Nathan van de Wouw

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

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Abstract

Shimmy oscillations are undesired vibrations in aircraft landing gears. The onset of shimmy, marked by Hopf bifurcations, is investigated in the parameter space of an industrial, high-fidelity, flexible multibody landing gear model. The bifurcation analyses are performed by coupling the Virtual.Lab Motion multibody solver with the numerical continuation software AUTO. The resulting quasi-2-parameter bifurcation diagrams, involving aircraft velocity and vertical landing gear load, are verified using conventional time-domain simulations and are shown to guarantee significantly higher solution accuracy at a similar computational cost.
Original languageEnglish
Title of host publicationProceedings of the 5th Joint Conference on Multibody System Dynamics, Lisboa, Portugal
EditorsJorge A. C. Ambrósio
Chapter11
Publication statusPublished - 26 Jun 2018

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