Analysis of Journal Bearing with Partial Texture Lubricated Using Micropolar and Power-Law Fluids

  • T. V. V. L. N. RaoEmail author
  • Ahmad Majdi Abdul Rani
  • Norani Muti Mohamed
  • Hamdan Haji Ya
  • Mokhtar Awang
  • Fakhruldin Mohd Hashim
Part of the Materials Forming, Machining and Tribology book series (MFMT)


The analysis of micropolar and power-law fluid lubricated journal bearing with partial texture is presented. The pressure and shear stress expressions (nondimensional) for micropolar and power-law fluids are derived based on narrow groove theory (NGT) using Reynolds boundary conditions. The nondimensional partial texture, micropolar and power-law fluid parameters considered in the analysis are: extent of texture region; land to cell extent ratio; depth of recess; coupling number, ratio of characteristic length to film gap and power-law index. The improvement in load capacity and reduction in coefficient of friction of partial texture journal bearings lubricated with micropolar and power-law fluids is evaluated.


Partial texture Narrow groove theory Load Friction 


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© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • T. V. V. L. N. Rao
    • 1
    Email author
  • Ahmad Majdi Abdul Rani
    • 2
  • Norani Muti Mohamed
    • 3
  • Hamdan Haji Ya
    • 2
  • Mokhtar Awang
    • 2
  • Fakhruldin Mohd Hashim
    • 2
  1. 1.Department of Mechanical EngineeringSRM Institute of Science and TechnologyKattankulathurIndia
  2. 2.Department of Mechanical EngineeringUniversiti Teknologi PETRONASBandar Seri IskandarMalaysia
  3. 3.Department of Fundamental and Applied SciencesUniversiti Teknologi PETRONASBandar Seri IskandarMalaysia

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