Harmonic Balance and Averaging Techniques for Stick-Slip Limit-Cycle Determination in Mode-Coupling Friction Self-Excited Systems

Authors

  • N. Hoffmann
  • S. Bieser
  • L. Gaul

Abstract

A minimal model for mode-coupling friction induced instability with Coulomb-type frictional nonlinearity is set up to investigate the applicability and quality of approximative methods to determine the limit cycles of unstable system configurations. It turns out that - due to the multi-degree-of-freedom nature of the mode-coupling instability - harmonic balance approaches yield reasonable results only if applied carefully, i.e. with respect to the special effects of the nonlinearities under consideration. The Krylov-Bogoliubov-Mitropolsky approach yields good results in a straightforward manner, the technique is however formally much more cumbersome.

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Published

2019-08-07

How to Cite

Hoffmann, N., Bieser, S. and Gaul, L. (2019) “Harmonic Balance and Averaging Techniques for Stick-Slip Limit-Cycle Determination in Mode-Coupling Friction Self-Excited Systems”, Technische Mechanik - European Journal of Engineering Mechanics, 24(3-4), pp. 185–197. Available at: https://journals.ub.ovgu.de/index.php/techmech/article/view/928 (Accessed: 21 November 2024).

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