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The Hydrodynamic Squeeze Film Lubrication of the Ankle Joint

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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[9] Ruggiero A., Gòmez E., D'Amato R,( 2013) , " Approximate closed-form solution of the synovial fluid film force in the human ankle joint with non-Newtonian lubricant", Tribology International , 57 ,pp.156–161.
[10] Bujurke N.M., Ramesh B. Kudenatti, (2006) "An analysis of rough poroelastic bearings with reference to lubrication mechanism of synovial joints", Applied Mathematics and Computation 178 ,pp.309–320.
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[16] Hlavacek M.. (2000)"Squeeze-film lubrication of the human ankle joint with synovial fluid filtrated by articular cartilage with the superficial zone worn out". Journal of Biomechanics, vol. 33, pp. 1415-1422.
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[25] Medley J.B., Dowson D., Wright V. (1983) "Surface geometry of the human ankle joint", Medical Engineering & Physics limited, Vol. 12. No. 1, pp. 35–41.
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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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    AU  - Albert E. Yousif
    AU  - Ali Amer Al-allaq
    Y1  - 2013/06/20
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    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
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    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
  • Professor, Medical Engineering Department/College of Engineering / alnahrain University, Baghdad, Iraq

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

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