Publication detail

Wheel Squeal Noise in Rail Transport: The Effect of Friction Modifier Composition

NAVRÁTIL, V. GALAS, R. KLAPKA, M. KVARDA, D. OMASTA, M. SHI, L. DING, H. WANG, W. KŘUPKA, I. HARTL, M.

English title

Wheel Squeal Noise in Rail Transport: The Effect of Friction Modifier Composition

Type

journal article in Scopus

Language

en

Original abstract

This study aimed to find an appropriate content of water-based friction modifier that will be able to reduce squeal noise without a significant impact on the coefficient of adhesion. A twin-disc machine was used, and the angle of attack of 4 ° simulates sharp curve conditions. The frictional behavior of nine water-based compositions was investigated for dry and wet films. During these experiments, the sound pressure level and the coefficient of adhesion were monitored. The results showed that the presence of solid lubricant in the composition is needed to achieve a long retentivity; however, its higher content can cause low adhesion. The composition with lower solid lubricant content and particles for friction modification with lower Mohs hardness was found to be suitable for further experiments. Moreover, comparison of recorded signals revealed that there is a bilinear dependence between the coefficient of adhesion and the sound pressure level.

English abstract

This study aimed to find an appropriate content of water-based friction modifier that will be able to reduce squeal noise without a significant impact on the coefficient of adhesion. A twin-disc machine was used, and the angle of attack of 4 ° simulates sharp curve conditions. The frictional behavior of nine water-based compositions was investigated for dry and wet films. During these experiments, the sound pressure level and the coefficient of adhesion were monitored. The results showed that the presence of solid lubricant in the composition is needed to achieve a long retentivity; however, its higher content can cause low adhesion. The composition with lower solid lubricant content and particles for friction modification with lower Mohs hardness was found to be suitable for further experiments. Moreover, comparison of recorded signals revealed that there is a bilinear dependence between the coefficient of adhesion and the sound pressure level.

Keywords in English

Friction management; Friction modifier; Noise mitigation; Wheel squeal noise; Wheel-rail tribology

Released

15.09.2022

Publisher

Faculty of Engineering, University of Kragujevac, Serbia

Location

Kragujevac, Serbia

ISSN

0354-8996

Volume

44

Number

3

Pages from–to

361–373

Pages count

12

BIBTEX


@article{BUT179842,
  author="Václav {Navrátil} and Radovan {Galas} and Milan {Klapka} and Daniel {Kvarda} and Milan {Omasta} and Lu-bing {Shi} and Haohao {Ding} and Wenjian {Wang} and Ivan {Křupka} and Martin {Hartl},
  title="Wheel Squeal Noise in Rail Transport: The Effect of Friction Modifier Composition",
  year="2022",
  volume="44",
  number="3",
  month="September",
  pages="361--373",
  publisher="Faculty of Engineering, University of Kragujevac, Serbia",
  address="Kragujevac, Serbia",
  issn="0354-8996"
}