Hot judder behavior in multidisc clutches

Biao Ma, Likun Yang, Heyan Li*, Nan Lan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

This paper presents an investigation of the hot judder phenomenon of multidisc clutches, which takes place during the engagement process. Depending on the results of finite element analysis, a pressure distribution function is defined and a contact pressure equation is established to demonstrate the non-uniformity of the contact pressure distribution on the friction interfaces due to frictional heat. The relationship between the coefficient of friction and the temperature is analyzed. A 4 degrees of freedom power-train model is developed to evaluate the clutch judder behavior. The paper indicates that the clutch judder is influenced by the non-uniformity of the interface contact pressure distribution, which is excited by frictionally induced thermal load. The non-uniform contact pressure distributions along the radial direction have a slight influence on the clutch judder, while the uneven contact pressure distributions along the circumference contribute to the judder substantially. Furthermore, the results in this work can be used to study the operation instability and the thermal failure of clutches.

Original languageEnglish
Pages (from-to)136-146
Number of pages11
JournalProceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
Volume231
Issue number1
DOIs
Publication statusPublished - 1 Jan 2017

Keywords

  • Multidisc clutches
  • coefficient of friction
  • contact pressure distributions
  • dynamic analysis
  • hot judder

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