Publication detail
Development of lubrication film and influence on friction in a total knee replacement during a gait cycle
ODEHNAL, L. RANUŠA, M. WIMMER, M. VRBKA, M. KŘUPKA, I.
English title
Development of lubrication film and influence on friction in a total knee replacement during a gait cycle
Type
journal article in Web of Science
Language
en
Original abstract
The presented study dealt with the experimental analysis of friction and lubrication mechanism observed with fluorescent microscopy in total knee replacement represented by CoCrMo wheel and PMMA plate. Model synovial fluid with marked constituents was used as test lubricant. The experiments investigated three main parameters. Slide-roll-ratio (SRR) showed the greatest influence on lubrication film formation. Friction coefficient was mostly influenced by axial load; its increase led to a decrease in friction. Relative speed was manifested for SRR 1.25 and higher where its increase caused a decrease in friction. The complex experiment showed a development of friction coefficient and lubrication film along the whole gait cycle. The results of this experiment correspond with the initial results concerning the influences of parameters.
English abstract
The presented study dealt with the experimental analysis of friction and lubrication mechanism observed with fluorescent microscopy in total knee replacement represented by CoCrMo wheel and PMMA plate. Model synovial fluid with marked constituents was used as test lubricant. The experiments investigated three main parameters. Slide-roll-ratio (SRR) showed the greatest influence on lubrication film formation. Friction coefficient was mostly influenced by axial load; its increase led to a decrease in friction. Relative speed was manifested for SRR 1.25 and higher where its increase caused a decrease in friction. The complex experiment showed a development of friction coefficient and lubrication film along the whole gait cycle. The results of this experiment correspond with the initial results concerning the influences of parameters.
Keywords in English
Total knee replacement; Friction coefficient; Lubrication film development; Fluorescent microscopy
Released
01.02.2023
Publisher
Elsevier
ISSN
0301-679X
Volume
178
Number
Únor
Pages from–to
108073–108073
Pages count
9
BIBTEX
@article{BUT180063,
author="Lukáš {Odehnal} and Matúš {Ranuša} and Markus A. {Wimmer} and Martin {Vrbka} and Ivan {Křupka},
title="Development of lubrication film and influence on friction in a total knee replacement during a gait cycle",
year="2023",
volume="178",
number="Únor",
month="February",
pages="108073--108073",
publisher="Elsevier",
issn="0301-679X"
}