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Applied Mathematics and Mechanics

, Volume 8, Issue 7, pp 655–665 | Cite as

Lubrication theory for micropolar fluids and its application to a journal bearing with finite length

  • Qiu Zu-gan
  • Lu Zhang-ji
Article

Abstract

In this paper, the field equation of micropolar fluid with general lubrication theory assumptions is simplified into two systems of coupled ordinary differential equation. The analytical solutions of velocity and microrotation velocity are obtained. Micropolar fluid lubrication Reynolds equation is deduced. By means of numerical method, the characteristics of a finitely long journal bearing under various dynamic parameters, geometrical parameters and micropolar parameters are shown in curve form. These characteristics are pressure distribution, load capacity, coefficient of flow flux and coefficient of friction. Practical value of micropolar effects is shown, so micropolar fluid theory further closes to engineering application.

Keywords

Load Capacity Couple Stress Journal Bearing Reynolds Equation Micropolar Fluid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Shanghai University of Technology 1987

Authors and Affiliations

  • Qiu Zu-gan
    • 1
  • Lu Zhang-ji
    • 1
  1. 1.Fudan UniversityShanghai

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