A survey of wheel–rail contact models for rail vehicles
Accurate and efficient contact models for wheel–rail interaction are essential for the study of
the dynamic behaviour of a railway vehicle. Assessment of the contact forces and moments …
the dynamic behaviour of a railway vehicle. Assessment of the contact forces and moments …
A review of ultrasonic reflectometry for the physical characterization of lubricated tribological contacts: history, methods, devices, and technological trends
Although “film thickness” and “viscosity” represent two of the most important physical
parameters in lubricated tribological contacts, their in situ measurement in tribosystems is …
parameters in lubricated tribological contacts, their in situ measurement in tribosystems is …
Distribution of contact pressure in wheel–rail contact area
The authors have recently assessed the feasibility of applying an ultrasonic technique for
investigating contact problems between the wheel and rail. In particular, the size and shape …
investigating contact problems between the wheel and rail. In particular, the size and shape …
Estimation of wheel/rail adhesion coefficient under wet condition with measured boundary friction coefficient and real contact area
H Chen, M Ishida, A Namura, KS Baek, T Nakahara… - Wear, 2011 - Elsevier
This paper describes how to improve the prediction method of the adhesion coefficient by
means of the experimentally estimated boundary friction coefficient obtained by two kinds of …
means of the experimentally estimated boundary friction coefficient obtained by two kinds of …
Experimental characterization of wheel-rail contact patch evolution
MB Marshall, R Lewis, RS Dwyer-Joyce, U Olofsson… - 2006 - asmedigitalcollection.asme.org
The contact area and pressure distribution in a wheel/rail contact is essential information
required in any fatigue or wear calculations to determine design life, re-grinding, and …
required in any fatigue or wear calculations to determine design life, re-grinding, and …
Rail–wheel interaction monitoring using Acoustic Emission: A laboratory study of normal rolling signals with natural rail defects
NA Thakkar, JA Steel, RL Reuben - Mechanical Systems and Signal …, 2010 - Elsevier
This paper presents a laboratory study on the Acoustic Emission (AE) generated during
railway wheel–rail track interaction, with a view to develo** methods of in situ rail–wheel …
railway wheel–rail track interaction, with a view to develo** methods of in situ rail–wheel …
How to measure the area of real contact of skin on glass
The contact between the fingertip and an object is formed by a collection of micro-scale
junctions, which collectively constitute the real contact area. This real area of contact is only …
junctions, which collectively constitute the real contact area. This real area of contact is only …
The application of ultrasonic NDT techniques in tribology
The use of ultrasonic reflection is emerging as a technique for studying tribological contacts.
Ultrasonic waves can be transmitted non-destructively through machine components and …
Ultrasonic waves can be transmitted non-destructively through machine components and …
Utilizing ultrasonic waves in the investigation of contact stresses, areas, and embedment of spheres in manufactured materials replicating proppants and brittle rocks
In the oil and gas industry, hydraulic fracturing (HF) is a common application to create
additional permeability in unconventional reservoirs. Using proppant in HF requires …
additional permeability in unconventional reservoirs. Using proppant in HF requires …
Molecular Probing of the Microscopic Pressure at Contact Interfaces
Obtaining insights into friction at the nanoscopic level and being able to translate these into
macroscopic friction behavior in real-world systems is of paramount importance in many …
macroscopic friction behavior in real-world systems is of paramount importance in many …