R\'esonance 2-surharmonique d'un contact unilat\'eral hertzien : approches th\'eorique et exp\'erimentale
Abstract
For a preloaded impact oscillator under superharmonic excitation of order 2, the Hertzian non linearity constitutes the precursor of vibroimpacts established over a wide frequency range. The theoretical study is performed by using the shooting method with an arc length continuation. Experimental results obtained from a devoted test rig agree with theoretical ones. Particularly, the threeshold level of the excitation necessary to induce vibroimpacts is confirmed.
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