Rolling Contact Fatigue and Static Compression Deformation of UHMWPE thrust bearing in water

Rolling Contact Fatigue in Ultra High Vacuum

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 ...

Numerical Computation of Rolling Resistance Based on the Result of Tire/Road Static Contact Analysis

Among various dissipating mechanisms, the viscoelastic effect of rubber material on creation of rolling resistance is responsible for 10-33% dissipation of supplied power at the tire/road interaction surface. So, evaluating this kind of loss is very essential in any analysis concerned with improving the fuel consumption of vehicles and resultantly energy savage. Hysteretic loss is a fraction of...

MECHANICAL PROPERTY AND ROLLING CONTACT FATIGUE LIFE OF TiN FILM ON BEARING STEEL BY PLASMA IMMERSION ION IMPLANTATION AND DEPOSITION

Titanium Nitride (TiN) films were synthesized on AISI52100 bearing steel surface employing plasma immersion ion implantation and deposition (PIIID) technique. X-ray diffraction (XRD) proves that TiN phase exists in the surface layer. The depth profiles and chemical bonds were analyzed with X-ray photoelectron spectroscopy (XPS) combined with Ar ion etching. Atomic force microscope (AFM) reveals...

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...