Improving tribological behaviours and noise performance of railway disc brake by grooved surface texturing

In this work, the effect of the grooved disc surface on the tribological behaviour and noise performance of railway brake systems are investigated by using both a pad-on-disc tribometer and a drag-type brake dynamometer. The experimental results obtained from the pad-on-disc tribometer show that the...

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Bibliographic Details
Published in:Wear 2017-04, Vol.376-377 (PB), p.1586-1600
Main Authors: Wang, D.W., Mo, J.L., Liu, M.Q., Li, J.X., Ouyang, H., Zhu, M.H., Zhou, Z.R.
Format: Article
Language:English
Subjects:
Disc brakes
Friction noise
Groove
Grooves
Numerical analysis
Railway brake
Railway networks
Texturing
Tribological
Tribology
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Summary:In this work, the effect of the grooved disc surface on the tribological behaviour and noise performance of railway brake systems are investigated by using both a pad-on-disc tribometer and a drag-type brake dynamometer. The experimental results obtained from the pad-on-disc tribometer show that the grooves on the disc surface can significantly affect tribological behaviour and consequently affect noise level and even suppress squeal noise. To further verify the effect of grooves on tribological and noise performance, a new brake dynamometer is developed and accordingly grooves are introduced to the brake disc of this new set-up. The experimental results obtained from the brake dynamometer are well consistent with that obtained from the pad-on-disc tribometer. Moreover, numerical analysis is performed to provide a reasonable explanation on the experimental phenomenon. •The effect of grooved disc surfaces on tribological and noise behaviours is studied.•Develop a dynamometer to study the railway brake tribological and noise behaviours.•The friction and noise results obtained from two setups are compared and discussed.•Numerical analysis is performed to explain the experimental phenomenons.
ISSN:0043-1648
1873-2577
DOI:10.1016/j.wear.2017.01.022