Rail corrugation: advances in measurement, understanding and treatment

Grassie, Stuart L.

doi:10.1016/j.wear.2004.03.066

Cited by 143 publications

(77 citation statements)

References 21 publications

(32 reference statements)

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“…In this way, Grassie [17] proposed two distinct mechanisms for the generation of dynamic actions (Fig. 3).…”

Section: Rail Corrugation: Types and Causes Of Formationmentioning

confidence: 99%

“…The University of Cambridge and the British Rail Research [17] collaboratively developed the first model of CAT (Corrugation Analysis Trolley) in 1970 and then it was used in many railway infrastructures. This instrument, falling within the category of contact instrument, has a contact sensor (tip or roller sensor) and an odometer.…”

Section: Measurement Of Rail Irregularitiesmentioning

confidence: 99%

“…This instrument, falling within the category of contact instrument, has a contact sensor (tip or roller sensor) and an odometer. The CAT works hand-pushed, riding the rail, allowing to detect the longitudinal profile on the surface of the rail with vertical precision of 0.01 lm [17]. This instrument, in addition to measuring the surface of the rail in terms of longitudinal profile, is able to return the acoustic roughness, the roughness of the rail connected to the generation of the noise (expressed in dB), and being provided with a dedicated software used for the calculation [23][24][25].…”

Section: Measurement Of Rail Irregularitiesmentioning

confidence: 99%

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Measurement methods and analysis tools for rail irregularities: a case study for urban tram track

Chiacchiari

Loprencipe

2015

J. Mod. Transport.

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Rail irregularities, in particular for urban railway infrastructures, are one of the main causes for the generation of noise and vibrations. In addition, repetitive loading may also lead to decay of the structural elements of the rolling stock. This further causes an increase in maintenance costs and reduction of service life. Monitoring these defects on a periodic basis enables the network rail managers to apply proactive measures to limit further damage. This paper discusses the measurement methods for rail corrugation with particular regard to the analysis tools for evaluating the thresholds of acceptability in relation to the tramway Italian transport system. Furthermore, a method of analysis has been proposed: an application of the methodology used for treating road profiles has been also utilized for the data processing of rail profilometric data.

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“…In this way, Grassie [17] proposed two distinct mechanisms for the generation of dynamic actions (Fig. 3).…”

Section: Rail Corrugation: Types and Causes Of Formationmentioning

confidence: 99%

Section: Measurement Of Rail Irregularitiesmentioning

confidence: 99%

Section: Measurement Of Rail Irregularitiesmentioning

confidence: 99%

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Measurement methods and analysis tools for rail irregularities: a case study for urban tram track

Chiacchiari

Loprencipe

2015

J. Mod. Transport.

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“…Considering different material damage and wavelength fixing mechanisms, Grassie and Kalousek (1993) and Grassie (2005) classified corrugation into six different categories based on engineering experience, which significantly increased the understanding of corrugation.…”

Section: Introductionmentioning

confidence: 99%

“…The corrugation mechanisms proposed by Grassie and Kalousek (1993), Grassie (2005), and Knothe and Groβ-Thebing (2008) imply that the key to understanding and predicting corrugation initiation and development is to solve the dynamic vehicletrack interaction and the transient wheel-rail rolling contact. The present work employs a 3D transient rolling contact finite element (FE) model to solve the high-speed wheel-rail rolling contact and the vehicletrack interaction on a corrugated rail in the time domain.…”

Section: Introductionmentioning

confidence: 99%

Modeling of high-speed wheel-rail rolling contact on a corrugated rail and corrugation development

Zhao

Wen

Heng-yu

et al. 2014

JZUS-A

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Short pitch rail corrugations were observed on a recently opened Chinese high-speed line. On the basis of field measurements and observations of corrugations occurred on the high-speed line, a 3D transient rolling contact model is developed using the explicit finite element (FE) method to investigate high-speed vehicle-track interactions in the presence of rail corrugations. The rotational and translational movements of the wheel are introduced as initial conditions in the model. The frictional rolling contact between the wheel and the corrugated rail is solved by a penalty method based surface-to-surface contact algorithm with Coulomb's law of friction. The contact filter effect is considered automatically by the finite size of the contact patch. Through specifying a time-dependent driving torque applied to the wheel axle, the tangential vehicle-track interaction on the corrugated rail is analyzed in the time domain together with the normal one at different traction levels and at rolling speeds of up to 500 km/h. This analysis focuses on detailed contact solutions, such as distributions of the pressure, surface shear stress, Von Mises (V-M) stress, and frictional work. The corrugation dimensions, traction level, and rolling speed are varied to investigate their influences, building a solid basis for further studying the material damage mechanisms. A theory is proposed based on the simulations to explain the observed phenomenon that the corrugation gradually stabilizes. The traditional multi-body approach is found to overestimate the dynamic wheel-rail interaction on a corrugated rail.

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Survey of Metro Excitation Frequencies and Coincidence of Different Modes

Cox

Wang

Adedipe

Notes on Numerical Fluid Mechanics and Multidisciplinary Design

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Rail corrugation: advances in measurement, understanding and treatment

Cited by 143 publications

References 21 publications

Measurement methods and analysis tools for rail irregularities: a case study for urban tram track

Measurement methods and analysis tools for rail irregularities: a case study for urban tram track

Modeling of high-speed wheel-rail rolling contact on a corrugated rail and corrugation development

Survey of Metro Excitation Frequencies and Coincidence of Different Modes

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