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New events in stick slip oscillators behaviour

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HAL-INRIA
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  • [Spi.Meca.Vibr] Engineering Sciences [Physics]/Mechanics [Physics.Med-Ph]/Vibrations [Physics.Class-
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Abstract

A two-degree-of-freedom oscillator excited by dry friction is considered. The system consists of two masses connected by a linear spring, one of which is connected to a fixed wall by another spring. The second mass is in contact with a driving belt moving at a constant velocity. Coulomb's friction force acts between the mass and the belt. Periodic orbits including stick phases and slip phases, during which the mass in contact with the belt moves faster than the belt, are found analytically. The stability of these "overshooting" orbits is also investigated.

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