Bifurcation-based shimmy analysis of landing gears using flexible multibody models

Camiel Beckers, A. Emre Öngüt, G. Verbeek, Rob Fey, Yves Lemmens, Nathan van de Wouw

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureHoofdstukAcademicpeer review

1 Citaat (Scopus)
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Samenvatting

Shimmy oscillations are undesired vibrations in aircraft landing gears. In this chapter, the onset of shimmy vibrations, marked by Hopf bifurcations, is investigated in the parameter space of high-fidelity, flexible multibody landing gear models. Such a bifurcation analysis is performed by combining the Virtual.Lab Motion multibody solver with the numerical continuation software AUTO. The resulting quasi-2-parameter bifurcation diagrams, involving aircraft velocity and normal load, are verified using conventional time-simulation methods and are shown to be computationally more efficient. A sensitivity study reveals the influence of design parameters, such as the shimmy damping coefficient, mechanical trail, and steering actuator stiffness, on the occurrence of shimmy.
Originele taal-2Engels
TitelNonlinear Structural Dynamics and Damping
RedacteurenJuan Carlos Jauregui
Plaats van productieCham
UitgeverijSpringer Nature Switzerland AG
Hoofdstuk7
Pagina's261-291
Aantal pagina's31
ISBN van elektronische versie978-3-030-13317-7
ISBN van geprinte versie978-3-030-13316-0
DOI's
StatusGepubliceerd - 15 mrt 2019

Publicatie series

NaamMechanisms and Machine Science
Volume69
ISSN van geprinte versie2211-0984
ISSN van elektronische versie2211-0992

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  • Citeer dit

    Beckers, C., Öngüt, A. E., Verbeek, G., Fey, R., Lemmens, Y., & van de Wouw, N. (2019). Bifurcation-based shimmy analysis of landing gears using flexible multibody models. In J. C. Jauregui (editor), Nonlinear Structural Dynamics and Damping (blz. 261-291). (Mechanisms and Machine Science; Vol. 69). Springer Nature Switzerland AG. https://doi.org/10.1007/978-3-030-13317-7_7