非均匀接触对湿式离合器摩擦特性的影响

doi:10.13229/j.cnki.jdxbgxb20161386

吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (3): 661-669.doi: 10.13229/j.cnki.jdxbgxb20161386

非均匀接触对湿式离合器摩擦特性的影响

赵二辉¹, 马彪^1,2, 李和言^1,2, 杜秋¹, 吴健鹏¹, 马成男¹

1.北京理工大学机械与车辆学院,北京 100081;
2.北京电动车辆协同创新中心,北京 100081;

收稿日期:2016-12-21 出版日期:2018-05-20 发布日期:2018-05-20
通讯作者: 马彪(1964-),男,教授,博士生导师.研究方向:车辆传动理论与技术.E-mail:mabiao@bit.edu.cn
作者简介:赵二辉(1985-),男,博士研究生.研究方向:车辆传动理论与技术.E-mail:zhaoerhuichn@163.com
基金资助:
国家自然科学基金项目(51575042).

Effect of non-uniform contact on friction characteristics of wet clutches

ZHAO Er-hui¹, MA Biao^1,2, LI He-yan^1,2, DU Qiu¹, WU Jian-peng¹, MA Cheng-nan¹

1.School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;
2.Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing 100081, China

Received:2016-12-21 Online:2018-05-20 Published:2018-05-20

摘要/Abstract

摘要： 利用接触比率的不同来模拟摩擦副的非均匀接触状态,建立摩擦副润滑摩擦模型,并在湿式离合器综合试验台上进行了相应试验。根据仿真分析和试验结果可知:随着接触比率的减小,摩擦副表面温度显著升高,局部摩擦因数及总摩擦因数明显增大,因此局部摩擦转矩和总摩擦转矩也明显增大。此外,由于接触比率的减小,摩擦副滑摩过程中振动明显增强。所以,由热翘曲所引起的非均匀接触严重劣化了摩擦副的摩擦性能,加速了离合器的损坏。

关键词: 车辆工程, 湿式离合器, 铜基摩擦副, 摩擦特性

Abstract: The non-uniform contact states of friction pairs are simulated by the different contact ratio. A lubrication model of the friction pair is proposed and corresponding tests are conducted on a wet clutch comprehensive test bench. The results simulations and tests show that, as the contact ratio reduces the surface temperature of friction pair increases obviously, and the local friction coefficient and total friction coefficient increase dramatically, so that the local friction torque grows significantly. In addition, the vibration of the output torque becomes more severe when the contact ratio reduces. Therefore, the non-uniform contact after thermal buckling severely deteriorates the friction properties of the friction pairs, and accelerates the failure of the wet clutches.

Key words: vehicle engineering, wet clutch, Cu-based friction pair, friction characteristics

中图分类号:

U463.2

赵二辉, 马彪, 李和言, 杜秋, 吴健鹏, 马成男. 非均匀接触对湿式离合器摩擦特性的影响[J]. 吉林大学学报(工学版), 2018, 48(3): 661-669.

ZHAO Er-hui, MA Biao, LI He-yan, DU Qiu, WU Jian-peng, MA Cheng-nan. Effect of non-uniform contact on friction characteristics of wet clutches[J]. 吉林大学学报(工学版), 2018, 48(3): 661-669.

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非均匀接触对湿式离合器摩擦特性的影响

Effect of non-uniform contact on friction characteristics of wet clutches

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