Stabilization of frictional sliding by normal load modulation: A bifurcation analysis

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dc.creatorCochard, A.
dc.creatorBureau, L.
dc.creatorBaumberger, T.
dc.date2001-11-20
dc.date.accessioned2026-07-07T02:43:35Z
dc.date.available2026-07-07T02:43:35Z
dc.descriptionThis paper presents the stability analysis of a system sliding at low velocities ($< 100 μ$m.s$^{-1}$) under a periodically modulated normal load, preserving interfacial contact. Experiments clearly evidence that normal vibrations generally stabilize the system against stick-slip oscillations, at least for a modulation frequency much larger than the stick-slip one. The mechanical model of Bureau {\it et al.} (2000), validated on the steady-state response of the system, is used to map its stability diagram. The model takes explicitly into account the finite shear stiffness of the load-bearing asperities, in addition to a classical state- and rate-dependent friction force. The numerical results are in excellent quantitative agreement with the experimental data obtained from a multicontact frictional system between glassy polymer materials. Simulations at larger amplitude of modulation (typically 20% of the mean normal load) suggest that the non-linear coupling between normal and sliding motion could have a destabilizing effect in restricted regions of the parameter space.
dc.descriptionsubmitted to ASME: J. Appl. Mech
dc.identifierhttps://arxiv.org/abs/cond-mat/0111369
dc.identifierhttp://arxiv.org/abs/cond-mat/0111369
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/18557
dc.subjectSoft Condensed Matter
dc.subjectMaterials Science
dc.titleStabilization of frictional sliding by normal load modulation: A bifurcation analysis
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