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

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

Abstract

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.
LanguageEnglish
Title of host publicationNonlinear Structural Dynamics and Damping
EditorsJuan Carlos Jauregui
Place of PublicationCham
PublisherSpringer Nature Switzerland AG
Chapter7
Pages261-292
Number of pages31
ISBN (Electronic)978-3-030-13317-7
ISBN (Print)978-3-030-13316-0
DOIs
StatePublished - 15 Mar 2019

Publication series

NameMechanisms and Machine Science
PublisherSpringer Nature Switzerland AG.
Volume69
ISSN (Print)2211-0984

Fingerprint

Landing gear (aircraft)
Hopf bifurcation
Actuators
Damping
Aircraft
Stiffness

Keywords

  • Bifurcation analysis
  • Flexible multibody dynamics
  • Shimmy
  • Landing gear dynamics

Cite this

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 (Ed.), Nonlinear Structural Dynamics and Damping (pp. 261-292). (Mechanisms and Machine Science; Vol. 69). Cham: Springer Nature Switzerland AG. DOI: 10.1007/978-3-030-13317-7_7
Beckers, Camiel ; Öngüt, A. Emre ; Verbeek, G. ; Fey, Rob ; Lemmens, Yves ; van de Wouw, Nathan. / Bifurcation-based shimmy analysis of landing gears using flexible multibody models. Nonlinear Structural Dynamics and Damping. editor / Juan Carlos Jauregui. Cham : Springer Nature Switzerland AG, 2019. pp. 261-292 (Mechanisms and Machine Science).
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abstract = "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.",
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Beckers, C, Öngüt, AE, Verbeek, G, Fey, R, Lemmens, Y & van de Wouw, N 2019, Bifurcation-based shimmy analysis of landing gears using flexible multibody models. in JC Jauregui (ed.), Nonlinear Structural Dynamics and Damping. Mechanisms and Machine Science, vol. 69, Springer Nature Switzerland AG, Cham, pp. 261-292. DOI: 10.1007/978-3-030-13317-7_7

Bifurcation-based shimmy analysis of landing gears using flexible multibody models. / Beckers, Camiel; Öngüt, A. Emre; Verbeek, G.; Fey, Rob; Lemmens, Yves; van de Wouw, Nathan.

Nonlinear Structural Dynamics and Damping. ed. / Juan Carlos Jauregui. Cham : Springer Nature Switzerland AG, 2019. p. 261-292 (Mechanisms and Machine Science; Vol. 69).

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

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Beckers C, Öngüt AE, Verbeek G, Fey R, Lemmens Y, van de Wouw N. Bifurcation-based shimmy analysis of landing gears using flexible multibody models. In Jauregui JC, editor, Nonlinear Structural Dynamics and Damping. Cham: Springer Nature Switzerland AG. 2019. p. 261-292. (Mechanisms and Machine Science). Available from, DOI: 10.1007/978-3-030-13317-7_7