Elastic dynamics of frictional sliding

Iuliia Karachevtseva

doi:10.4225/23/5b220111b35e1

Elastic dynamics of frictional sliding

Iuliia Karachevtseva

Research output: Thesis › Doctoral Thesis

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Abstract

Friction plays an important role in stick-slip motion which is an undesirable phenomenon in engineering applications. We focus on studying frictional behaviour of contacting solids during sliding and cutting and the associated dynamic effects which are critical for the stick-slip motion and friction reduction. The effect of vibrations on friction reduction and the efficiency of cutting with the influence of rock fragments in front of and under the cutter are determined. The thesis highlights the profound effects of the elasticity of the material and the non-sphericity of the grains/cuttings on stick-slip behaviour and friction force fluctuations.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Pasternak, Elena, Supervisor Dyskin, Arcady, Supervisor Miller, Karol, Supervisor
Thesis sponsors	Australian Government Research Training Program
Award date	22 May 2018
DOIs	https://doi.org/10.4225/23/5b220111b35e1
Publication status	Unpublished - 2018

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THESIS - DOCTOR OF PHILOSOPHY - KARACHEVTSEVA Iuliia - 2018
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Cite this

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title = "Elastic dynamics of frictional sliding",

abstract = "Friction plays an important role in stick-slip motion which is an undesirable phenomenon in engineering applications. We focus on studying frictional behaviour of contacting solids during sliding and cutting and the associated dynamic effects which are critical for the stick-slip motion and friction reduction. The effect of vibrations on friction reduction and the efficiency of cutting with the influence of rock fragments in front of and under the cutter are determined. The thesis highlights the profound effects of the elasticity of the material and the non-sphericity of the grains/cuttings on stick-slip behaviour and friction force fluctuations. ",

keywords = "Friction reduction, Negative stiffness, Stick-slip, Rock fragmentation, Particle rotation, Efficiency of cutting, Non-sphericity of grains, Supersonic rupture propagation",

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language = "English",

school = "The University of Western Australia",

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AU - Karachevtseva, Iuliia

PY - 2018

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N2 - Friction plays an important role in stick-slip motion which is an undesirable phenomenon in engineering applications. We focus on studying frictional behaviour of contacting solids during sliding and cutting and the associated dynamic effects which are critical for the stick-slip motion and friction reduction. The effect of vibrations on friction reduction and the efficiency of cutting with the influence of rock fragments in front of and under the cutter are determined. The thesis highlights the profound effects of the elasticity of the material and the non-sphericity of the grains/cuttings on stick-slip behaviour and friction force fluctuations.

AB - Friction plays an important role in stick-slip motion which is an undesirable phenomenon in engineering applications. We focus on studying frictional behaviour of contacting solids during sliding and cutting and the associated dynamic effects which are critical for the stick-slip motion and friction reduction. The effect of vibrations on friction reduction and the efficiency of cutting with the influence of rock fragments in front of and under the cutter are determined. The thesis highlights the profound effects of the elasticity of the material and the non-sphericity of the grains/cuttings on stick-slip behaviour and friction force fluctuations.

KW - Friction reduction

KW - Negative stiffness

KW - Stick-slip

KW - Rock fragmentation

KW - Particle rotation

KW - Efficiency of cutting

KW - Non-sphericity of grains

KW - Supersonic rupture propagation

U2 - 10.4225/23/5b220111b35e1

DO - 10.4225/23/5b220111b35e1

M3 - Doctoral Thesis

ER -

Elastic dynamics of frictional sliding

Abstract

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