Dynamical behaviors of a two-degree-of-freedom (TDOF) vibro-impact system are investigated. The theoretical solution of periodic-one double-impact motion is obtained by differential equations, periodicity and matching conditions, and the Poincare map is established. The dynamics of the system are studied with special attention to Hopf bifurcations of the impact system in nonresonance, weak resonance, and strong resonance cases. The Hopf bifurcation theory of maps in R-2-strong resonance is applied to reveal the existence of Hopf bifurcations of the system. The theoretical analyses are verified by numerical solutions. The evolution from periodic impacts to chaos in nonresonance, weak resonance, and strong resonance cases, is obtained by numerical simulations. The results show that dynamical behavior of the system in the strong resonance case is more complicated than that of the nonresonance and weak resonance cases.
机构:
Univ Fed Rio de Janeiro, COPPE Dept Mech Engn, BR-21941972 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, COPPE Dept Mech Engn, BR-21941972 Rio De Janeiro, Brazil
Aguiar, R. R.
Weber, H. I.
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Pontificia Univ Catolica Rio de Janeiro, Dept Mech Engn, BR-22451900 Rio De Janeiro, BrazilUniv Fed Rio de Janeiro, COPPE Dept Mech Engn, BR-21941972 Rio De Janeiro, Brazil
机构:
Univ Mans, Acoust Lab, UMR CNRS 6613, Ave Olivier Messiaen, F-72085 Le Mans 09, FranceUniv Mans, Acoust Lab, UMR CNRS 6613, Ave Olivier Messiaen, F-72085 Le Mans 09, France
Li, Haiqin
Li, Ang
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Harbin Inst Technol, Res Ctr Satellite Technol, Harbin 150001, Peoples R ChinaUniv Mans, Acoust Lab, UMR CNRS 6613, Ave Olivier Messiaen, F-72085 Le Mans 09, France