Analysis of Elastohydrodynamic Lubrication of Ball Screw with Rotating Nut

Abstract:

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The isothermal elliptical contact elastohydrodynamic lubrication (EHL) problem in ball screw with rotating nut was studied.Numerical solution to the problem was obtained for various parameters with a multigrid solver.Based on work mentioned above,the influence of the working parameters such as the rotating speed of screw shaft and the contact force,on the lubricant oil film thickness and pressure is analyzed .The results showed that, with the increasing loads,the pressure became higher,the film thickness became smaller. On the other hand,when the angular velocity was higher,the film thickness was higher, while the pressure spike was closer to the center of the contact. Because of the spinning, the slide-roll ratio was not a constant.

Info:

Periodical:

Edited by:

Dongye Sun, Wen-Pei Sung and Ran Chen

Pages:

3132-3139

DOI:

10.4028/www.scientific.net/AMM.121-126.3132

Citation:

S. G. Mu and X. Y. Feng, "Analysis of Elastohydrodynamic Lubrication of Ball Screw with Rotating Nut", Applied Mechanics and Materials, Vols. 121-126, pp. 3132-3139, 2012

Online since:

October 2011

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$35.00

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