Superharmonic Resonance of Order 2 for an Impacting Hertzian Contact Oscillator: Theory and Experiments - Archive ouverte HAL
Article Dans Une Revue Journal of Computational and Nonlinear Dynamics Année : 2007

Superharmonic Resonance of Order 2 for an Impacting Hertzian Contact Oscillator: Theory and Experiments

Résumé

The purpose of this paper is to investigate experimental responses of a preloaded vibroimpact Hertzian contact to an order 2 superharmonic excitation. A test rig is used, corresponding to a double sphere–plane contact preloaded by the weight of a moving body. Typical response curves are obtained under the superharmonic excitation. The Hertzian nonlinearity constitutes the precursor of vibroimpacts established over a wide frequency range. This behavior can be related to the existence of a transcritical bifurcation. In conjuction with the experiments, numerical results lead to the same conclusion. In particular, the threshold level of the excitation necessary to induce vibroimpact is confirmed.
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hal-03257255 , version 1 (10-06-2021)

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Joël Perret-Liaudet, Emmanuel Rigaud. Superharmonic Resonance of Order 2 for an Impacting Hertzian Contact Oscillator: Theory and Experiments. Journal of Computational and Nonlinear Dynamics, 2007, 2 (2), pp.190-196. ⟨10.1115/1.2447549⟩. ⟨hal-03257255⟩
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