An analytical approach to study a special case of booted sleeper track rail corrugation

Gómez, I.; Vadillo, E.G.

doi:10.1016/s0043-1648(01)00750-5

Cited by 19 publications

(12 citation statements)

References 11 publications

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“…The output of the application is the corrugation growth function, which shows the predisposition to the appearance of corrugation as a function of frequency in Hz [21,22].…”

Section: Tool Utilised: Racingmentioning

confidence: 99%

Modelling rail corrugation with specific-track parameters focusing on ballasted track and slab track

Oyarzabal

Correa

Vadillo

et al. 2011

Vehicle System Dynamics

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“…The output of the application is the corrugation growth function, which shows the predisposition to the appearance of corrugation as a function of frequency in Hz [21,22].…”

Section: Tool Utilised: Racingmentioning

confidence: 99%

Modelling rail corrugation with specific-track parameters focusing on ballasted track and slab track

Oyarzabal

Correa

Vadillo

et al. 2011

Vehicle System Dynamics

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“…These parameters lead to the same receptances shown in [16,17], allowing therefore to validate results. These receptances were calculated, as already mentioned, using the first module of a mathematical tool developed by the authors [6][7][8].…”

Section: Application Of the Transformation Methods To Obtain The Trackmentioning

confidence: 99%

“…The utilisation of frequency domain models makes it possible to obtain linear models which describe the real track dynamic behaviour to a great degree of precision, including rail transversal cross-section deformation and elongation, flexion and torsional wave propagation along the infinite track [6][7][8]. The ease of calculation using frequency domain models also enables the optimisation of track parameters in order to improve their behaviour [9].…”

Section: Introductionmentioning

confidence: 99%

“…Thus this paper has chosen to develop a time domain track model obtained from the transformation of a comprehensive frequency domain model able to study medium-high frequency ranges developed by the authors [6][7][8], which enables the consideration of transversal cross-section deformation of an infinite rail, using a modified Rational Fraction Polynomials (RFP) method. This method availed itself of an extremely detailed model in the frequency domain to obtain a simplified spatial domain model valid up to frequencies as high as required for each particular problem.…”

Section: Introductionmentioning

confidence: 99%

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A rational fraction polynomials model to study vertical dynamic wheel–rail interaction

Correa

Vadillo

Santamaría

et al. 2012

Journal of Sound and Vibration

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Please cite this paper as: Correa, N., Vadillo, E.G., Santamaria, J., Gomez, J. A rational fraction polynomials model to study vertical dynamic wheel-rail interaction. Journal of Sound and Vibration, Vol. 331, pp. 1844-1858. 2012 Corresponding author. Email: ernesto.garciavadillo@ehu.es Sound and Vibration, Vol. 331, pp. 1844-1858. 2012 NOTICE: This is an electronic version of an article published in Journal of SummaryThis 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 receptances. The paper obtains the receptances from a full track model in the frequency domain already developed by the authors, which includes deformation of the rail section and propagation of bending, elongation and torsional waves along an infinite track. Transformation between domains was secured by applying a modified rational fraction polynomials method. This obtains a track model with very few degrees of freedom, and thus with minimum time consumption for integration, with a good match to the original model over a sufficiently broad range of frequencies. Wheel-rail interaction is modelled on a non-linear Hertzian spring, and consideration is given to parametric excitation caused by the wheel moving over a sleeper, since this is a moving wheel model and not a moving irregularity model. The model is used to study the dynamic loads and displacements emerging at the wheel-rail contact passing over a welding defect at different speeds.

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“…A successful application of this theory can be found in Refs. [4][5][6] to explain the rail corrugation in Bilbao appearing between sleepers. Calculations are very fast, and the theory can benefit from a range of tools developed for the study of linear systems, like stability analysis [7].…”

Section: A Literature Reviewmentioning

confidence: 99%

Comparison between time and frequency studies of a corrugated curve of RER Paris network

Collette¹,

Vanhonacker

Bastaits³

et al. 2008

Wear

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a b s t r a c tIn this paper, both time and frequency domain approaches are applied to a corrugated, curved, ballasted track section located in the RER commuter rail network in Paris. From the railhead profile measurements, two corrugation wavelengths are identified on the low rail. The wavelength fixing mechanisms are found to correlate to a resonance of the concrete sleepers and a resonance of the unsprung mass of the vehicle on the track stiffness. Corrugation growth rates are established from both approaches and compared. Then, an extensive parameter study is performed in order to evaluate the relevance of various parameters and to identify viable solutions for mitigating the observed corrugation. Specifically we examine the impact on rail corrugation due to the following track parameters: the vertical and lateral rail pad stiffness, the sleeper mass and the superelevation.

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An analytical approach to study a special case of booted sleeper track rail corrugation

Cited by 19 publications

References 11 publications

Modelling rail corrugation with specific-track parameters focusing on ballasted track and slab track

Modelling rail corrugation with specific-track parameters focusing on ballasted track and slab track

A rational fraction polynomials model to study vertical dynamic wheel–rail interaction

Comparison between time and frequency studies of a corrugated curve of RER Paris network

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