The characteristics of hydrostatic bearings can be influenced by the compensating device they use, for example, a thin-walled orifice (diaphragm). The flow through the orifice is given by a law where an ad hoc discharge coefficient appears, and, in order to guarantee the characteristics of the hydrostatic bearing, this coefficient must be calibrated. The aim of this work is to provide an accurate estimation of the discharge coefficient under specific conditions. Therefore an experimental bench was designed and a numerical model was carried out. The results obtained then by the experimental and theoretical approach were compared with the values given by the literature. Finally, the influence of the discharge coefficient on the behavior of a thrust bearing is examined.
Determination of the Discharge Coefficient of a Thin-Walled Orifice Used in Hydrostatic Bearings
Contributed by the Tribology Division for publication in the ASME JOURNAL OF TRIBOLOGY. Manuscript received by the Tribology Division August 20, 2003; revised manuscript received March 16, 2004. Review conducted by: L. San Andre´s.
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Charles , S., Bonneau , O., and Fre^ne , J. (June 13, 2005). "Determination of the Discharge Coefficient of a Thin-Walled Orifice Used in Hydrostatic Bearings ." ASME. J. Tribol. July 2005; 127(3): 679–684. https://doi.org/10.1115/1.1843158
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