An approximate analysis of dry-friction-induced stick-slip vibrations by a smoothing procedure
type: Item
instance of: scholarly article
title: An approximate analysis of dry-friction-induced stick-slip vibrations by a smoothing procedure
zbMATH Open document ID: 0966.70013
DOI: 10.1023/A:1008306327781
author: A. de Kraker
author: van de Vrande, B. L.
author: Dick H. van Campen
published in: Nonlinear Dynamics
publication date: 2001-08-16T00:00:00Z
review text: The authors consider the dynamics of oil exploration drill strings. In engineering practice, dry friction often generates undesirable effects such as self-sustained stick-slip vibrations which produce noise and shorten the lifespan of mechanisms. To study the behaviour of torsional stick-slip vibrations of oil exploration drill strings, the discontinuous forces are approximated by smooth forces. The authors use 1-DOF and 2-DOF block-and-belt models, and analyse both stable and unstable periodic solutions. Simultaneously, the authors introduce a nonlinear 2-DOF model where the drill pipe is modelled by linear torsional spring, the drill collars are assumed to be rigid and are modelled by an equivalent mass with the corresponding moment of inertia and linear damping, and the drill bit is subjected to Coulomb's friction force.
Mathematics Subject Classification ID: 70K40
Mathematics Subject Classification ID: 70K05
Mathematics Subject Classification ID: 70-08
zbMATH DE Number: 1396390
zbMATH Keywords: oil exploration drill strings
zbMATH Keywords: dry friction
zbMATH Keywords: stick-slip vibrations
zbMATH Keywords: block-and-belt models
zbMATH Keywords: periodic solutions
zbMATH Keywords: Coulomb's friction
reviewed by: Yuri N. Sankin
describes a project that uses: ODEPACK
MaRDI profile type: Publication
full work available at URL: a:1008306327781
OpenAlex ID: W1917452357
description: scientific article; zbMATH DE number 1396390