Dynamic Characteristics of Hydrostatic Thrust Air Bearing With Actively Controlled Restrictor

[+] Author and Article Information
Yuichi Sato, K. Maruta, M. Harada

Department of of Mechanical Engineering, Saitama University, 255 Shimo-Okubo, Urawa, Japan

J. Tribol 110(1), 156-161 (Jan 01, 1988) (6 pages) doi:10.1115/1.3261556 History: Received March 02, 1987; Online October 29, 2009


The dynamic characteristics of a hydrostatic thrust air bearing with an actively controlled orifice restrictor are investigated theoretically and experimentally. Theoretical results show that the dynamic stiffness and damping coefficients can be increased simultaneously when the restrictor area is controlled with appropriate phase-lag to the change of air film thickness, that is, plate vibrations. Consequently stability of the bearing can be improved. Experimental results show fairly good agreement with theoretical ones.

Copyright © 1988 by ASME
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