The Hydrodynamic Squeeze Film Lubrication of the Ankle Joint

Albert E. Yousif; Ali Amer Al-allaq

doi:doi:10.11648/j.ijmea.20130102.12

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The Hydrodynamic Squeeze Film Lubrication of the Ankle Joint

Albert E. Yousif, Ali Amer Al-allaq

Published in International Journal of Mechanical Engineering and Applications (Volume 1, Issue 2)

Received: 29 May 2013 Published: 20 June 2013

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Abstract

The main aim of the study presented in this paper is to determine the characteristics of synovial fluid film region by modeling the human ankle joint to obtain an analytical expression for the pressure distribution, load carrying capacity, coefficient of friction and reduction of synovial film thickness with time of approach. Thus in order to reach a comprehensive analysis of the human ankle joint lubrication, variable behavior of synovial fluid during different time of joint activities and the influences of articular cartilage has to be taken into account. The behavior of the synovial fluid has been assumed to be isothermal, shear thinning and non- Newtonian couple stress fluid. The model of ankle joint has been taken geometrically and kinematically as a partial porous journal bearing under the action of hydrodynamic squeeze film lubrication. Typical geometrical and physical values of the ankle joint were acquired from measured values reported in literature. The problem of ankle joint lubrication has been solved numerically for various couple stress fluid parameters together with effect of varying the porosity of the articular cartilage. It has been shown , in the presence of porous articular cartilage, and by assuming the synovial fluid to be a non- Newtonian shear thinning couple stress fluid that the , pressure distribution, load carrying capacity, synovial film thickness with time of approach increased and a reduction coefficient of friction in the hydrodynamic squeeze action in the ankle joint resulted.

Published in	International Journal of Mechanical Engineering and Applications (Volume 1, Issue 2)
DOI	10.11648/j.ijmea.20130102.12
Page(s)	34-42
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2013. Published by Science Publishing Group

Keywords

Ankle Joint, Synovial Fluid, Couple Stress Fluid, Hydrodynamic Lubrication, Human Joint Lubrication

References

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APA Style

Albert E. Yousif, Ali Amer Al-allaq. (2013). The Hydrodynamic Squeeze Film Lubrication of the Ankle Joint. International Journal of Mechanical Engineering and Applications, 1(2), 34-42. https://doi.org/10.11648/j.ijmea.20130102.12

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ACS Style

Albert E. Yousif; Ali Amer Al-allaq. The Hydrodynamic Squeeze Film Lubrication of the Ankle Joint. Int. J. Mech. Eng. Appl. 2013, 1(2), 34-42. doi: 10.11648/j.ijmea.20130102.12

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AMA Style

Albert E. Yousif, Ali Amer Al-allaq. The Hydrodynamic Squeeze Film Lubrication of the Ankle Joint. Int J Mech Eng Appl. 2013;1(2):34-42. doi: 10.11648/j.ijmea.20130102.12

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@article{10.11648/j.ijmea.20130102.12,
  author = {Albert E. Yousif and Ali Amer Al-allaq},
  title = {The Hydrodynamic Squeeze Film Lubrication of the Ankle Joint},
  journal = {International Journal of Mechanical Engineering and Applications},
  volume = {1},
  number = {2},
  pages = {34-42},
  doi = {10.11648/j.ijmea.20130102.12},
  url = {https://doi.org/10.11648/j.ijmea.20130102.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.20130102.12},
  abstract = {The main aim of the study presented in this paper is to determine the characteristics of synovial fluid film region by modeling the human ankle joint to obtain an analytical expression for the pressure distribution, load carrying capacity, coefficient of friction and reduction of synovial film thickness with time of approach. Thus in order to reach a comprehensive analysis of the human ankle joint lubrication, variable behavior of synovial fluid during different time of joint activities and the influences of articular cartilage has to be taken into account. The behavior of the synovial fluid has been assumed to be isothermal, shear thinning and non- Newtonian couple stress fluid. The model of ankle joint has been taken geometrically and kinematically as a partial porous journal bearing under the action of hydrodynamic squeeze film lubrication. Typical geometrical and physical values of the ankle joint were acquired from measured values reported in literature. The problem of ankle joint lubrication has been solved numerically for various couple stress fluid parameters together with effect of varying the porosity of the articular cartilage. It has been shown , in the presence of porous articular cartilage, and by assuming the synovial fluid to be a non- Newtonian shear thinning couple stress fluid that the , pressure distribution, load carrying capacity, synovial film thickness with time of approach increased and a reduction coefficient of friction in the hydrodynamic squeeze action in the ankle joint resulted.},
 year = {2013}
}

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TY  - JOUR
T1  - The Hydrodynamic Squeeze Film Lubrication of the Ankle Joint
AU  - Albert E. Yousif
AU  - Ali Amer Al-allaq
Y1  - 2013/06/20
PY  - 2013
N1  - https://doi.org/10.11648/j.ijmea.20130102.12
DO  - 10.11648/j.ijmea.20130102.12
T2  - International Journal of Mechanical Engineering and Applications
JF  - International Journal of Mechanical Engineering and Applications
JO  - International Journal of Mechanical Engineering and Applications
SP  - 34
EP  - 42
PB  - Science Publishing Group
SN  - 2330-0248
UR  - https://doi.org/10.11648/j.ijmea.20130102.12
AB  - The main aim of the study presented in this paper is to determine the characteristics of synovial fluid film region by modeling the human ankle joint to obtain an analytical expression for the pressure distribution, load carrying capacity, coefficient of friction and reduction of synovial film thickness with time of approach. Thus in order to reach a comprehensive analysis of the human ankle joint lubrication, variable behavior of synovial fluid during different time of joint activities and the influences of articular cartilage has to be taken into account. The behavior of the synovial fluid has been assumed to be isothermal, shear thinning and non- Newtonian couple stress fluid. The model of ankle joint has been taken geometrically and kinematically as a partial porous journal bearing under the action of hydrodynamic squeeze film lubrication. Typical geometrical and physical values of the ankle joint were acquired from measured values reported in literature. The problem of ankle joint lubrication has been solved numerically for various couple stress fluid parameters together with effect of varying the porosity of the articular cartilage. It has been shown , in the presence of porous articular cartilage, and by assuming the synovial fluid to be a non- Newtonian shear thinning couple stress fluid that the , pressure distribution, load carrying capacity, synovial film thickness with time of approach increased and a reduction coefficient of friction in the hydrodynamic squeeze action in the ankle joint resulted.
VL  - 1
IS  - 2
ER  -

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Author Information

Albert E. Yousif

Professor, Medical Engineering Department/College of Engineering / alnahrain University, Baghdad, Iraq
Ali Amer Al-allaq

Graduate student, Medical Engineering Department/ College of Engineering / alnahrain University, Baghdad, Iraq

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Plain Text BibTeX RIS

APA Style

Albert E. Yousif, Ali Amer Al-allaq. (2013). The Hydrodynamic Squeeze Film Lubrication of the Ankle Joint. International Journal of Mechanical Engineering and Applications, 1(2), 34-42. https://doi.org/10.11648/j.ijmea.20130102.12

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ACS Style

Albert E. Yousif; Ali Amer Al-allaq. The Hydrodynamic Squeeze Film Lubrication of the Ankle Joint. Int. J. Mech. Eng. Appl. 2013, 1(2), 34-42. doi: 10.11648/j.ijmea.20130102.12

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AMA Style

Albert E. Yousif, Ali Amer Al-allaq. The Hydrodynamic Squeeze Film Lubrication of the Ankle Joint. Int J Mech Eng Appl. 2013;1(2):34-42. doi: 10.11648/j.ijmea.20130102.12

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@article{10.11648/j.ijmea.20130102.12,
  author = {Albert E. Yousif and Ali Amer Al-allaq},
  title = {The Hydrodynamic Squeeze Film Lubrication of the Ankle Joint},
  journal = {International Journal of Mechanical Engineering and Applications},
  volume = {1},
  number = {2},
  pages = {34-42},
  doi = {10.11648/j.ijmea.20130102.12},
  url = {https://doi.org/10.11648/j.ijmea.20130102.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmea.20130102.12},
  abstract = {The main aim of the study presented in this paper is to determine the characteristics of synovial fluid film region by modeling the human ankle joint to obtain an analytical expression for the pressure distribution, load carrying capacity, coefficient of friction and reduction of synovial film thickness with time of approach. Thus in order to reach a comprehensive analysis of the human ankle joint lubrication, variable behavior of synovial fluid during different time of joint activities and the influences of articular cartilage has to be taken into account. The behavior of the synovial fluid has been assumed to be isothermal, shear thinning and non- Newtonian couple stress fluid. The model of ankle joint has been taken geometrically and kinematically as a partial porous journal bearing under the action of hydrodynamic squeeze film lubrication. Typical geometrical and physical values of the ankle joint were acquired from measured values reported in literature. The problem of ankle joint lubrication has been solved numerically for various couple stress fluid parameters together with effect of varying the porosity of the articular cartilage. It has been shown , in the presence of porous articular cartilage, and by assuming the synovial fluid to be a non- Newtonian shear thinning couple stress fluid that the , pressure distribution, load carrying capacity, synovial film thickness with time of approach increased and a reduction coefficient of friction in the hydrodynamic squeeze action in the ankle joint resulted.},
 year = {2013}
}

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TY  - JOUR
T1  - The Hydrodynamic Squeeze Film Lubrication of the Ankle Joint
AU  - Albert E. Yousif
AU  - Ali Amer Al-allaq
Y1  - 2013/06/20
PY  - 2013
N1  - https://doi.org/10.11648/j.ijmea.20130102.12
DO  - 10.11648/j.ijmea.20130102.12
T2  - International Journal of Mechanical Engineering and Applications
JF  - International Journal of Mechanical Engineering and Applications
JO  - International Journal of Mechanical Engineering and Applications
SP  - 34
EP  - 42
PB  - Science Publishing Group
SN  - 2330-0248
UR  - https://doi.org/10.11648/j.ijmea.20130102.12
AB  - The main aim of the study presented in this paper is to determine the characteristics of synovial fluid film region by modeling the human ankle joint to obtain an analytical expression for the pressure distribution, load carrying capacity, coefficient of friction and reduction of synovial film thickness with time of approach. Thus in order to reach a comprehensive analysis of the human ankle joint lubrication, variable behavior of synovial fluid during different time of joint activities and the influences of articular cartilage has to be taken into account. The behavior of the synovial fluid has been assumed to be isothermal, shear thinning and non- Newtonian couple stress fluid. The model of ankle joint has been taken geometrically and kinematically as a partial porous journal bearing under the action of hydrodynamic squeeze film lubrication. Typical geometrical and physical values of the ankle joint were acquired from measured values reported in literature. The problem of ankle joint lubrication has been solved numerically for various couple stress fluid parameters together with effect of varying the porosity of the articular cartilage. It has been shown , in the presence of porous articular cartilage, and by assuming the synovial fluid to be a non- Newtonian shear thinning couple stress fluid that the , pressure distribution, load carrying capacity, synovial film thickness with time of approach increased and a reduction coefficient of friction in the hydrodynamic squeeze action in the ankle joint resulted.
VL  - 1
IS  - 2
ER  -

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