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

doi:10.3969/j.issn.1000-1093.2017.04.001

Abstract

Abstract: This work focuses on the influence of rotating speed on local lubrication and friction charac- teristics 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. Key

Key words: ordnancescienceandtechnology, wetclutch, mixedlubrication, frictioncharacteristics, rotatingspeed

CLC Number:

ZHAO Er-hui, MA Biao, LI He-yan, DU Qiu, LI Hui-zhu, MA Cheng-nan. Influence of Rotating Speed on Local Lubrication and Friction Characteristics of Wet Clutch[J]. Acta Armamentarii, 2017, 38(4): 625-633.

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第38卷
第4期2017 年4月兵工学报ACTA
ARMAMENTARIIVol.38No.4Apr.2017

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