Influence of Rotating Speed on Local Lubrication and Friction Characteristics of Wet Clutch

Er Hui Zhao; Biao Ma; He Yan Li; Qiu Du; Hui Zhu Li; Cheng Nan Ma

doi:10.3969/j.issn.1000-1093.2017.04.001

Influence of Rotating Speed on Local Lubrication and Friction Characteristics of Wet Clutch

Er Hui Zhao, Biao Ma^*, He Yan Li, Qiu Du, Hui Zhu Li, Cheng Nan Ma

^*Corresponding author for this work

School of Mechanical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

This work focuses on the influence of rotating speed on local lubrication and friction characteristics of wet clutch. A thermal mixed lubrication model in plane contacts is developed, and the pin-on-disc tests are conducted on universal material tester (UMT). Local pressure distribution, load sharing ratio, contact area ratio, local temperature rise and friction coefficient are analyzed. The results show that, as the rotating speed rises, hydrodynamic pressure grows significantly, while real contact area of friction pair reduces obviously. The main normal load is supported by hydrodynamic film. The friction coefficient is mainly affected by the change of asperity contact area, and has rough congruent relationship with the real contact area ratio.

Original language	English
Pages (from-to)	625-633
Number of pages	9
Journal	Binggong Xuebao/Acta Armamentarii
Volume	38
Issue number	4
DOIs	https://doi.org/10.3969/j.issn.1000-1093.2017.04.001
Publication status	Published - 1 Apr 2017

Keywords

Friction characteristics
Mixed lubrication
Ordnance science and technology
Rotating speed
Wet clutch

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10.3969/j.issn.1000-1093.2017.04.001

Cite this

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title = "Influence of Rotating Speed on Local Lubrication and Friction Characteristics of Wet Clutch",

abstract = "This work focuses on the influence of rotating speed on local lubrication and friction characteristics of wet clutch. A thermal mixed lubrication model in plane contacts is developed, and the pin-on-disc tests are conducted on universal material tester (UMT). Local pressure distribution, load sharing ratio, contact area ratio, local temperature rise and friction coefficient are analyzed. The results show that, as the rotating speed rises, hydrodynamic pressure grows significantly, while real contact area of friction pair reduces obviously. The main normal load is supported by hydrodynamic film. The friction coefficient is mainly affected by the change of asperity contact area, and has rough congruent relationship with the real contact area ratio.",

keywords = "Friction characteristics, Mixed lubrication, Ordnance science and technology, Rotating speed, Wet clutch",

author = "Zhao, {Er Hui} and Biao Ma and Li, {He Yan} and Qiu Du and Li, {Hui Zhu} and Ma, {Cheng Nan}",

year = "2017",

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doi = "10.3969/j.issn.1000-1093.2017.04.001",

language = "English",

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T1 - Influence of Rotating Speed on Local Lubrication and Friction Characteristics of Wet Clutch

AU - Zhao, Er Hui

AU - Ma, Biao

AU - Li, He Yan

AU - Du, Qiu

AU - Li, Hui Zhu

AU - Ma, Cheng Nan

PY - 2017/4/1

Y1 - 2017/4/1

N2 - This work focuses on the influence of rotating speed on local lubrication and friction characteristics of wet clutch. A thermal mixed lubrication model in plane contacts is developed, and the pin-on-disc tests are conducted on universal material tester (UMT). Local pressure distribution, load sharing ratio, contact area ratio, local temperature rise and friction coefficient are analyzed. The results show that, as the rotating speed rises, hydrodynamic pressure grows significantly, while real contact area of friction pair reduces obviously. The main normal load is supported by hydrodynamic film. The friction coefficient is mainly affected by the change of asperity contact area, and has rough congruent relationship with the real contact area ratio.

AB - This work focuses on the influence of rotating speed on local lubrication and friction characteristics of wet clutch. A thermal mixed lubrication model in plane contacts is developed, and the pin-on-disc tests are conducted on universal material tester (UMT). Local pressure distribution, load sharing ratio, contact area ratio, local temperature rise and friction coefficient are analyzed. The results show that, as the rotating speed rises, hydrodynamic pressure grows significantly, while real contact area of friction pair reduces obviously. The main normal load is supported by hydrodynamic film. The friction coefficient is mainly affected by the change of asperity contact area, and has rough congruent relationship with the real contact area ratio.

KW - Friction characteristics

KW - Mixed lubrication

KW - Ordnance science and technology

KW - Rotating speed

KW - Wet clutch

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Influence of Rotating Speed on Local Lubrication and Friction Characteristics of Wet Clutch

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