Stochastic responses of Duffing - Van der Pol vibro-impact system under additive colored noise excitation

Chao Li, Wei Xu, Liang Wang, Dong Xi Li

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

A response analysis procedure is developed for a vibro-impact system excited by colored noise. The non-smooth transformation is used to convert the vibro-impact system into a new system without impact term. With the help of the modified quasi-conservative averaging, the total energy of the new system can be approximated as a Markov process, and the stationary probability density function (PDF) of the total energy is derived. The response PDFs of the original system are obtained using the analytical solution of the stationary PDF of the total energy. The validity of the theoretical results is tested through comparison with the corresponding simulation results. Moreover, stochastic bifurcations are also explored.

Original languageEnglish
Article number110205
JournalChinese Physics B
Volume22
Issue number11
DOIs
StatePublished - Nov 2013

Keywords

  • colored noise
  • non-smooth transformation
  • stochastic bifurcation
  • vibro-impact system

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