Shimmy in a nonlinear model of an aircraft nose landing gear with non-zero rake angle

P Thota, B Krauskopf, MH Lowenberg

Research output: Working paperWorking paper and Preprints

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Abstract

This work concentrates on the lateral oscillations in vehicles, also called shimmy, with a particular emphasis on aircraft. A mathematical model of a nose landing gear is discussed with geometric detail that has been mostly neglected in the past research. Stability criteria for the shimmy-free operation of the landing gear are derived using linear stability analysis. Nonlinear analysis is used not only to study the qualitative behaviour of the Hopf bifurcation but also to analyze the system beyond the Hopf bifurcation. The manuscript concludes with suggestions for future research.
Original languageEnglish
Publication statusPublished - Feb 2008

Bibliographical note

Additional information: A paper submitted to the 6th EUROMECH (European Mechanics Society) Nonlinear Dynamics Conference (ENOC 2008), June 30 — July 4, 2008, Saint Petersburg, Russia.

Sponsorship: Airbus, U.K.

Keywords

  • landing gear
  • bifurcation analysis
  • rake angle
  • shimmy

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