Now showing items 1-4 of 4
Porous self-protonating spiropyran-based NIPAAm gels with improved reswelling kinetics
[EN] This study focuses on improving the speed ofactuation of poly(N-isopropylacrylamide)-based photoresponsive gels containing copolymerised spiropyran as the photoswitch and acrylic acid as the proton source. The improvement ...
On the study of train-track dynamic interactions caused by rail welds on discrete supported rails
The paper studies the influence of rail weld dip on wheel-rail contact dynamics, with particular reference to freight trains where it is important to increase the operating speed and also the load transported. This has ...
A rational fraction polynomials model to study vertical dynamic wheel-rail interaction
This paper presents a model designed to study vertical interactions between wheel and rail when the wheel moves over a rail welding. The model focuses on the spatial domain, and is drawn up in a simple fashion from track ...
On the influence of conformity on wheel–rail rolling contact mechanics
The aim of this work is to assess the effects of conformity on local contact related quantities at the wheel–rail interface such as traction distributions, subsurface stresses and frictional work distributions. For this ...