On the origin and bifurcations of stick-slip oscillations

Harry Dankowicz, Arne B. Nordmark

Research output: Contribution to journalArticlepeer-review

Abstract

A recently proposed model of macroscopic friction is investigated using methods of dynamical systems analysis. Particular emphasis is put on the bifurcations associated with the appearance of stick-slip oscillations. In the model it is found that the existence of these oscillations is a result of a periodic orbit straddling a discontinuity in the first derivative of the vector field. A local analysis tool is developed to discuss the stability of such an orbit and its bifurcations due to changes in system parameters. The analysis tool is found to be highly efficient at quantitatively predicting the location and type of bifurcations. It is argued that the method and the general results are applicable to a large class of friction models containing similar discontinuities and thus, hopefully, to actual frictional dynamics.

Original languageEnglish (US)
Pages (from-to)280-302
Number of pages23
JournalPhysica D: Nonlinear Phenomena
Volume136
Issue number3-4
DOIs
StatePublished - Feb 15 2000
Externally publishedYes

Keywords

  • Discontinuity mappings
  • Friction modeling
  • Grazing bifurcations
  • Stick-slip oscillations

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Condensed Matter Physics
  • Applied Mathematics

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