Rolling Contact Fatigue of Thrust Ball Bearing under Low Lambda Condition

Analysis of Surface Crack Growth under Rolling Contact Fatigue

Understanding the fatigue crack growth phenomenon in railheads requires a study of driving forces such as the crack tip opening and sliding displacements, under repeated rolling contact. Finite element simulations, allowing elastic-plastic deformation, and mixed-mode crack growth laws were utilized to demonstrate that the fatigue crack growth rates display a minimum after a finite amount of cra...

Condition Monitoring of Fault Diagnosis under Lubrication Condition in Ball Bearing using Infrared Thermography

In this paper, the novel approach for the rotating machine as diagnosis method in detecting the faults during its operation was proposed based upon the infrared thermograph technique. As experimental works, by performing the test of operation at several lubrication conditions for the ball bearing applied in the rotating machine which there has been used broadly, diagnosis evaluation and fault a...

Rolling Contact Fatigue in Ultra High Vacuum

Improved Method of Rolling Bearing Fatigue Life Prediction Under Edge Loading Conditions

More than half a century has passed since Lundberg and Palmgren (referred to as LP in the following) established a theory on the life of rolling bearings 1) 2), and problems with the theory such as its lack of capability of considering shear force (tangential force) on the surface caused by slip or the initial or residual stress due to fit have been pointed out, with correction to these problem...

A Thermal Elastohydrodynamic Lubricated Thrust Bearing Contact Model

A fully-coupled thermoelastic model for a fixed pad thrust bearing has been developed. Pressure, film thickness and three-dimensional temperature profiles were obtained by simultaneously solving the Reynolds, film thickness, energy and force balance equations using a combined finite difference and finite element method. The elastic deformation due to the pressure and the thermal distortion due ...