Publication detail
An Approximate Approach to Predict the Degree of Starvation in Ball–Disk Machine Based on the Relative Friction
ALI, F. KŘUPKA, I. HARTL, M.
Czech title
An Approximate Approach to Predict the Degree of Starvation in Ball–Disk Machine Based on the Relative Friction
English title
An Approximate Approach to Predict the Degree of Starvation in Ball–Disk Machine Based on the Relative Friction
Type
journal article - other
Language
en
Original abstract
This article focuses on analyzing the correlation between the degree of starvation and friction under the sliding motion in a ball-disk machine. The objective of this study was to define approximately the degree of starvation in the contact based on measuring one parameter (the relative coefficient of friction). Such an approximate approach could be useful in cases of opaque contacts where the optical interferometry technique cannot be used; for example, a steel ball on ametal disk. Experimental measurements were conducted under different degrees of starvation using a tribometer equipped with a torque sensor and a high-speed digital camera. The results showed agreement between the theoretical equations and the experimental measurements. Thus, it can be stated that the approximate ratio of the film thickness reduction can be predicted based on accurate measurements of friction.
Czech abstract
This article focuses on analyzing the correlation between the degree of starvation and friction under the sliding motion in a ball-disk machine. The objective of this study was to define approximately the degree of starvation in the contact based on measuring one parameter (the relative coefficient of friction). Such an approximate approach could be useful in cases of opaque contacts where the optical interferometry technique cannot be used; for example, a steel ball on ametal disk. Experimental measurements were conducted under different degrees of starvation using a tribometer equipped with a torque sensor and a high-speed digital camera. The results showed agreement between the theoretical equations and the experimental measurements. Thus, it can be stated that the approximate ratio of the film thickness reduction can be predicted based on accurate measurements of friction.
English abstract
This article focuses on analyzing the correlation between the degree of starvation and friction under the sliding motion in a ball-disk machine. The objective of this study was to define approximately the degree of starvation in the contact based on measuring one parameter (the relative coefficient of friction). Such an approximate approach could be useful in cases of opaque contacts where the optical interferometry technique cannot be used; for example, a steel ball on ametal disk. Experimental measurements were conducted under different degrees of starvation using a tribometer equipped with a torque sensor and a high-speed digital camera. The results showed agreement between the theoretical equations and the experimental measurements. Thus, it can be stated that the approximate ratio of the film thickness reduction can be predicted based on accurate measurements of friction.
Keywords in English
Relative Friction; Nonconformal Contacts; Starved Lubrication; Ball–Disk Machine
RIV year
2013
Released
27.08.2013
Publisher
Taylor & Francis
Location
USA
ISSN
1040-2004
Volume
56
Number
4
Pages from–to
681–686
Pages count
6
BIBTEX
@article{BUT101079,
author="Fadi {Ali} and Ivan {Křupka} and Martin {Hartl},
title="An Approximate Approach to Predict the Degree of Starvation in Ball–Disk Machine Based on the Relative Friction",
year="2013",
volume="56",
number="4",
month="August",
pages="681--686",
publisher="Taylor & Francis",
address="USA",
issn="1040-2004"
}