Experimental study on mechanism of rail corrugation using corrugation simulator

Suda, Yoshihiro; Komine, Hisanao; Iwasa, Takashi; Terumichi, Yoshiaki

doi:10.1016/s0043-1648(02)00095-9

Cited by 41 publications

(23 citation statements)

References 4 publications

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“…This choice is based on field observations, such as those shown in Figure 1a. Moreover, our work is a continuation of previous research in which corrugation was assumed to have a sinusoidal profile [3,9,[43][44][45][46]. A sinusoidal corrugation with a constant wavelength is applied to the rail surface expressed by the equation:…”

Section: Corrugation Modelmentioning

confidence: 99%

New Insights into the Short Pitch Corrugation Enigma Based on 3D-FE Coupled Dynamic Vehicle-Track Modeling of Frictional Rolling Contact

Li¹,

Li²,

Núñez³

et al. 2017

Applied Sciences

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Abstract:A three-dimensional (3D) finite element (FE) dynamic frictional rolling contact model is presented for the study of short pitch corrugation that considers direct and instantaneous coupling between the contact mechanics and the structural dynamics in a vehicle-track system. In this study, we examine the system responses in terms of vibration modes, contact forces and the resulting wear with smooth rail and corrugated rail with progressively increasing amplitude to infer the conditions for consistent corrugation initiation and growth. Wear is assumed to be the damage mechanism, and short pitch corrugation is modeled using wavelengths from field observations of a Dutch railway. The contribution of this paper is a global perspective of the consistency conditions that govern the evolution of short pitch corrugation. The main insights are as follows: (1) the longitudinal vibration modes are probably dominant for short pitch corrugation initiation; (2) during short pitch corrugation evolution, the interaction and consistency between longitudinal and vertical modes should determine the development of short pitch corrugation, and once a certain severity is reached, vertical modes become dominant; and (3) in the case simulated in this paper, corrugation does not grow probably due to not only the different resulting main frequencies of the vertical and longitudinal contact forces, but also the inconsistency between the frequencies of the vertical and longitudinal vibration modes and the resulting wear. It is inferred that in the continuous process of initiation and growth of the corrugation, there should be a consistency between them, and this could be done by the control of certain track parameters.

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Section: Corrugation Modelmentioning

confidence: 99%

New Insights into the Short Pitch Corrugation Enigma Based on 3D-FE Coupled Dynamic Vehicle-Track Modeling of Frictional Rolling Contact

Li¹,

Li²,

Núñez³

et al. 2017

Applied Sciences

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“…Much progress with respect to the mechanism of initial corrugation formation and development has been made with theoretical and experimental methods. According to a review on rail corrugations [5], the related studies and the algorithms include three main parts: (1) theoretical and numerical methods [6][7][8][9][10][11][12][13][14] ; (2) experimental methods [15][16][17] ; and (3) investigations and observations in the sites [18,19]. The studies on the theoretical and numerical methods include simple vertical dynamics of wheel/track based on a concept of feedback between the wear and the contact vibration of wheel and track [6,7], rolling contact theories of Hertzian form [8][9][10], the structural high frequency vibrations of flexible wheelset and track or their self-excited vibrations [11,12], and plastic deformation theory of rail material [13,14].…”

mentioning

confidence: 99%

Effect of rail corrugation on vertical dynamics of railway vehicle coupled with a track

et al. 2005

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The effect of rail corrugation on the vertical dynamics of railway vehicle coupled with a curved track is investigated in detail with a numerical method when a wheelset is steadily curving. In the calculation of rail corrugation we consider the combination of Kalker's rolling contact theory modified, a model of material loss on rail running surface, and a dynamics model of railway vehicle coupled with a curved track. In the establishment of the dynamic model, for simplicity, one fourth of the freight car without lateral motions, namely a wheelset and the equivalent one fourth freight car body above it, is considered. The Euler beam is used to model the rails and the track structure under the rails is replaced with equivalent springs, dampers and mass bodies. The numerical results show the great influence of the rail corrugation on the vibration of the parts of the vehicle and the track, and the some characters of rail corrugation in development.

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“…Rail corrugation is minor wear and has a wave height of 0.1 mm and a wavelength of 5-10 cm occurring on the rails; it generates both damage to rails and noise [3][4][5][6]. It occurs mainly in the inner rails in steep curves such as shown in fig.…”

Section: Rail Corrugationmentioning

confidence: 99%

Fault detection of railway track by multi-resolution analysis

Kojima¹,

Tsunashima²,

Matsumoto³

2006

WIT Transactions on the Built Environment, Vol 88

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Conditions of track have conventionally been measured by using exclusive inspection vehicles. If the conditions of the track can be detected by attaching simple sensors such as accelerometers on board of commercial vehicles, more efficient maintenance of tracks would be possible. This paper describes rail corrugation detection from the vertical acceleration of a vehicle body by timefrequency analysis. An actual vehicle running tests on a commercial line was conducted, in which vertical acceleration of axle-boxes and a vehicle body were measured. In this paper we show the rail corrugation can be detected from the vertical acceleration of a vehicle body by multi-resolution analysis (MRA) using wavelet transform.

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Experimental study on mechanism of rail corrugation using corrugation simulator

Cited by 41 publications

References 4 publications

New Insights into the Short Pitch Corrugation Enigma Based on 3D-FE Coupled Dynamic Vehicle-Track Modeling of Frictional Rolling Contact

New Insights into the Short Pitch Corrugation Enigma Based on 3D-FE Coupled Dynamic Vehicle-Track Modeling of Frictional Rolling Contact

Effect of rail corrugation on vertical dynamics of railway vehicle coupled with a track

Fault detection of railway track by multi-resolution analysis

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