BackBrowsing Artículos by Subject "MECHANICS OF MATERIALS"
Now showing items 1-6 of 6
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A rational fraction polynomials model to study vertical dynamic wheel-rail interaction
Correa García, Nekane
; García Vadillo, Ernesto ; Santamaría Manrique, Javier ; Gómez López, Josu (Elsevier, 2012-04)
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 ... -
Dynamic optimization of track components to minimize rail corrugation
Oyarzabal de Celis, Olatz; Gómez López, Josu; Santamaría Manrique, Javier ; García Vadillo, Ernesto (Elsevier, 2009-01)
In this paper, the influence on corrugation of the most significant track parameters has been examined. After this parametric study, the optimization of the track parameters to minimize the undulatory wear growth has been ... -
On the influence of conformity on wheel–rail rolling contact mechanics
; Santamaría Manrique, Javier; García Vadillo, Ernesto ; Correa García, Nekane (Elsevier, 2016-07)
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 ... -
On the study of train-track dynamic interactions caused by rail welds on discrete supported rails
Correa García, Nekane; García Vadillo, Ernesto ; Santamaría Manrique, Javier ; Gómez López, Josu (Elsevier, 2014-06-15)
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 ... -
Porous self-protonating spiropyran-based NIPAAm gels with improved reswelling kinetics
Ziołkowski, Bartosz; Florea, Larisa; Jannick, Theobald; Benito López, Fernando; Diamond, Dermot (Springer, 2016-02)
[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 ... -
Wheel-rail wear index prediction considering multiple contact patches
Santamaría Manrique, Javier; García Vadillo, Ernesto ; Oyarzabal de Celis, Olatz (Elsevier, 2009-06)
This paper shows a new wheel-rail contact model specially suited to obtain wear indexes between wheel and rail when the vehicle negotiates tight curves. The model presented in the paper enables introduction of the two ...