Friction Management as a Sustainable Solution for Controlling Noise at the Wheel-Rail Interface

Stock, Richard J.; Santoro, Marco; Makowsky, Tony W; Elvidge, D.; Xia, Pinqi

doi:10.1007/978-3-319-73411-8_57

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…[5][6][7][8][9][10] It was found that the solid FMs can help controlling rail corrugation 11 and triboinduced noise. 12 Fletcher and Beynon 13 carried out a preliminary study into the implications of the change in lubrication method from grease to solid for rail rolling contact fatigue but the chemical composition of the bars was not reported. In contrast to grease, application of dry film top-of-rail FMs was shown to reduce crack growth and extend grinding intervals.…”

Section: Introductionmentioning

confidence: 99%

Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface

Vélez

Cornelio

Sierra

et al. 2020

Advanced Composites Letters

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Wear of wheels and rails is a major problem in railway transportation industry. Solid lubricants constitute a cost-efficient alternative to control wear and friction at the wheel–rail interface, especially when a fine-tuned balance between traction force and energy consumption is sought. In this work, composite friction modifiers (CFMs) composed of a vinyl ester matrix reinforced with molybdenum disulfide and carbon nanotubes were developed. The total solid additive content was less than a half in comparison with a commercial product available on the market, which was used as a reference. A benchmarking study of the CFM was carried out by means of tribological tests in a twin-disc machine at a contact pressure of 1.1 GPa and different slip values. The results indicated that the developed CFM reduce coefficient of traction by 10% compared to unlubricated conditions that is similar to the reference. However, the total mass loss of steel components due to wear under CFM lubrication was lower than in the reference test.

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Section: Introductionmentioning

confidence: 99%

Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface

Vélez

Cornelio

Sierra

et al. 2020

Advanced Composites Letters

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“…Curve noise is generated mainly in sections of a track with a curve radius of less than 300 m. If the ratio of the axle distance to the curve radius is 100 or less, the probability of generating a squealing noise is high [6,7]. Flange noise manifest differently based on the contact position of the wheel and the rail when the curve is passed over [8].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Wheel Squeal and Flanging on Curved Railway Tracks

Kim

Yun

Noh

2019

Int. J. Precis. Eng. Manuf.

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When a railway vehicle moves over a sharply curved section of track, intense high-frequency noises sometimes occur. These are potentially a source of annoyance to those living adjacent to railway tracks. To efficiently identify measures appropriate to reduce curve squeal, it is important to determine the dominant noise type. However, it is difficult to analyze the various noises made over curved sections of railway using general noise measurements. In this study, we analyzed squealing and flange noises using various experimental approaches. We first investigated the noise characteristics of the railway vehicle via structural analysis of the wheel. It was confirmed that a wheel has various natural frequencies and eigenmodes in the high frequency range, i.e. over 1000 Hz. A roller rig test was performed to measure and investigate the characteristics of the noise generated when an actual wheel and the curved section of the railway track come in contact with each other. In this experiment the squeal and the flange noises, in particular, were reproduced by adjustments made to the lateral angle and vertical force, respectively. Results confirmed that the squealing noise occurs in the high frequency region and the flange noise occurs in various modes. A study was also conducted to measure and analyze the noise in the actual curved section of an urban railway. By comparing the frequency analysis and the natural frequency analysis of the noise that was actually measured, the mode by which the wheel caused the squealing noise was confirmed. Furthermore, the influence of the noise generated inside and outside the curved section of the track was investigated based on velocity, and the influence of the former on the noise generated was also examined. This study provides information on the squeal and flange noises generated when a railway vehicle moves over a curved section of a railway using various experimental approaches.

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Study of the Initial Cycles Number Influence on the Retentivity of a Commercial Friction Modifier Using the Twin-disk Test

Xavier,

Rezende,

Fonseca

et al. 2024

Tribology Transactions

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Friction Management as a Sustainable Solution for Controlling Noise at the Wheel-Rail Interface

Cited by 3 publications

References 9 publications

Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface

Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface

Analysis of Wheel Squeal and Flanging on Curved Railway Tracks

Study of the Initial Cycles Number Influence on the Retentivity of a Commercial Friction Modifier Using the Twin-disk Test

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