Non-newtonian Rabinowitsch Fluid Effects on the Lubrication Performances of Sine Film Thrust Bearings
International Journal of Mechanical Engineering and Applications
Volume 5, Issue 3, June 2017, Pages: 162-167
Received: May 19, 2017;
Published: May 20, 2017
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Jaw-Ren Lin, Department of Mechanical Engineering, Nanya Institute of Technology, Taoyuan, Taiwan
Hsiu-Lu Chiang, Department of Mechanical Engineering, Nanya Institute of Technology, Taoyuan, Taiwan
Yu-Kang Chiu, Master Program of Mechanical and Mechatronics Engineering, Nanya Institute of Technology, Taoyuan, Taiwan
Thrust bearings are generally developed to sustain axial load generated from rotating machinery. Predicting lubrication performances of thrust bearings plays an important role in engineering applications. Taking into account the effects of non-Newtonian rheology, the lubrication performances for a sine film thrust bearing are investigated in the present paper. By employing a small perturbation technique to the nonlinear non-Newtonian Reynolds equation, analytical solutions of the film pressure, the load-carrying capacity, the friction parameter and the required volume flow rate are derived. Comparing with the case lubricated with a Newtonian lubricant, the non-Newtonian Rabinowitsch fluids (including the pseudo-plastic fluids and the dilatant fluids) show significant influences on the lubrication performances of a sine film thrust bearing, especially for a larger value of the non-Newtonian parameter.
Non-newtonian Rabinowitsch Fluid Effects on the Lubrication Performances of Sine Film Thrust Bearings, International Journal of Mechanical Engineering and Applications.
Vol. 5, No. 3,
2017, pp. 162-167.
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