首页   按字顺浏览 期刊浏览 卷期浏览 Effect of Eccentricity on the Force Response of a Hybrid Bearing
Effect of Eccentricity on the Force Response of a Hybrid Bearing

 

作者: LuisA. San Andres,  

 

期刊: Tribology Transactions  (Taylor Available online 1991)
卷期: Volume 34, issue 4  

页码: 537-544

 

ISSN:1040-2004

 

年代: 1991

 

DOI:10.1080/10402009108982067

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

The effect of journal eccentricity on the static and dynamic performance of a water lubricated, five-recess hybrid bearing is presented. The hydrostatic bearing has been designed to operate at a high speed and with a large level of external pressurization. The operating conditions determine the flow in the bearing to be highly turbulent and strongly dominated by fluid inertia effects. The analysis covers the range of journal center displacements directed toward the middle of a recess and toward the mid-land portion between two consecutive recesses. Predicted dynamic force coefficients are constant for small to moderate eccentricities. For large eccentricities, fluid cavitation and recess position determine large changes in the bearing dynamic performance. The effect of fluid inertia force coefficients on the threshold speed of instability and whirl frequency ratio of a single mass flexible rotor is discussed.

 

点击下载:  PDF (454KB)



返 回