CUED Publications database

The frequency response of dynamic friction: Enhanced rate-and-state models

Cabboi, A and Putelat, T and Woodhouse, J (2016) The frequency response of dynamic friction: Enhanced rate-and-state models. Journal of the Mechanics and Physics of Solids, 92. pp. 210-236. ISSN 0022-5096

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Abstract

© 2016 The Authors. Published by Elsevier Ltd. The prediction and control of friction-induced vibration requires a sufficiently accurate constitutive law for dynamic friction at the sliding interface: for linearised stability analysis, this requirement takes the form of a frictional frequency response function. Systematic measurements of this frictional frequency response function are presented for small samples of nylon and polycarbonate sliding against a glass disc. Previous efforts to explain such measurements from a theoretical model have failed, but an enhanced rate-and-state model is presented which is shown to match the measurements remarkably well. The tested parameter space covers a range of normal forces (10-50 N), of sliding speeds (1-10 mm/s) and frequencies (100-2000 Hz). The key new ingredient in the model is the inclusion of contact stiffness to take into account elastic deformations near the interface. A systematic methodology is presented to discriminate among possible variants of the model, and then to identify the model parameter values.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div C > Applied Mechanics
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:31
Last Modified: 23 Nov 2017 04:23
DOI: