Stability and bifurcation of a rigid rotor in cavitated squeeze-film dampers without centering springs

Jawaid Iqbal Inayat-Hussain, Hiroshi Kanki, Njuki W. Mureithi

Research output: Contribution to journalArticle

24 Citations (Scopus)


The continuation method is employed to investigate the non-linear response of a rigid rotor supported by squeeze-film dampers without centering springs. The Floquet transition matrix method, which was used to examine the stability of the periodic response, indicated that the rotor may lose stability via period-doubling and saddle-node bifurcations at certain parameter values. The continuation method, which allows for switching from one solution branch to another, enabled the solution branches of period-two, four, eight and sixteen to be mapped out. By simultaneously varying the unbalance and bearing parameters, the combination of these two parameters that avoids the occurrence of non-synchronous vibration or jump phenomena in this system was determined.

Original languageEnglish
Pages (from-to)689-702
Number of pages14
JournalTribology International
Issue number10
Publication statusPublished - Oct 2001


All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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