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DINAME2019
DINAME2019
Stochastic friction model with hysteresis: application to the dynamics of a drill-string
Submission Author:
Thiago Ritto , RJ
Co-Authors:
Fabio Ferreira Real, Thiago Ritto, anas batou
Presenter: Thiago Ritto
doi://10.26678/ABCM.DINAME2019.DIN2019-0033
Abstract
A probabilistic model is proposed to a hysteretic friction type model that might be used to model a bit-rock interaction. The application of interest is the nonlinear torsional dyamics of a drill-string. A nonstationary torque on bit, which is a function of the bit-speed, is constructed from a multiplicative strationary process.
Keywords
stochastic friction model hysteris, nonlinear dynamics, drill-string
