الصفحات

Alexandria Engineeing Libraries

بحث هذه المدونة الإلكترونية

شرح طريقة تحميل الامتحانات من المدونة

الأحد، 23 مارس، 2014

The Incompressible Lubrication A Foil Bearing

Title             :   The Incompressible Lubrication A Foil Bearing
Author        Wafaa Ahmed Shaker
Collection   M.Eng. Mechanics 

Abstract:  
A ridged foil journal bearing having a finite length and lubricated with an incompressible fluid was analytically investigated in order to understand and quantify its behavior. Film rupture has been accounted for by employing swift-stieber boundary conditions. The governing equations were numerically solved for a length to diameter ratio of unity. The equation is solved by using finite difference technique. The charts are presented for the acn-dimensional pressure at the median plane and for the effect of changing eccentricity on the pressure distribution. A comparison has been made between foil bearing and journal bearing to clarify the differences between them. At the same e the charts illustrate that the positive pressure occupies a larger portion of the bearing circumference in the foil bearing than the journal bearing and the angular location of minimum film thickness increases from 200’ in journal bearing to 250’ in foil bearing. This property is advantageous from the standpoint of bearing stability. The bearing load for the foil bearing is less than that for journal bearing.

ليست هناك تعليقات:

إرسال تعليق