湿式离合器摩擦副瞬态温度场仿真分析
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摘要
针对离合器接合过程摩擦副过热损坏问题,以某湿式DCT双离合器为研究对象,开展了湿式双离合器接合过程瞬态温度场分布规律研究,借助ANSYS仿真软件获得离合器摩擦副起步和换挡过程中瞬态温度场以及径向温度分布规律。研究表明:接合过程中离合器摩擦副表面最高温度出现在即将接合完成时刻;随径向半径的增大,温度逐渐升高;升、降挡过程中,起步及2挡降1挡工况时离合器摩擦副高热负荷相对较高。
In order to solve the problem of overheating and damage of friction pair during clutch engagement, a wet DCT dual-clutch is taken as the research object, the transient temperature field and radial temperature distribution during clutch engagement are studied.The transient temperature field and radial temperature distribution are obtained by ANSYS simulation software. The results show that the highest surface temperature of clutch friction pair occurs at the moment of completion of engagement. With the increase of radial radius, the temperature increases gradually; In the process of up and down gear, the high heat load of clutch friction pair is relatively high when starting and gear 2 down to gear 1 working condition.
In order to solve the problem of overheating and damage of friction pair during clutch engagement, a wet DCT dual-clutch is taken as the research object, the transient temperature field and radial temperature distribution during clutch engagement are studied.The transient temperature field and radial temperature distribution are obtained by ANSYS simulation software. The results show that the highest surface temperature of clutch friction pair occurs at the moment of completion of engagement. With the increase of radial radius, the temperature increases gradually; In the process of up and down gear, the high heat load of clutch friction pair is relatively high when starting and gear 2 down to gear 1 working condition.
引文
[1]胡宏伟.湿式自动离合器接合过程特性的研究[D].杭州:浙江大学,2008.
[2]汤春球,祁建得,吕俊成,等.离合器摩擦副表面温度对摩擦因数的影响[J].润滑与密封,2009(7):66-68,73.
[3]徐晓科,莫易敏,汤春球,等.微型汽车离合器摩擦副温度场研究[J].现代制造工程,2009(1):74-76,92.
[4]孙冬野,胡丰宾,邓涛,等.湿式多片离合器翘曲特性模拟与试验[J].重庆大学学报,2010,33(5):1-6.
[5]Zagrodzki P.Numerical analysis of temperature fields and thermal stresses in the friction discs of a multidisc wet clutch[J].Wear,1985,101(3):255-271.
[6]Zagrodzki P.Analysis of thermomechanical phenomena in multidisc clutches and brakes[J].Wear,1990,140(2):291-308.
[7]Zagrodzki P,Truncone S A.Generation of hot spots in a wet multidisk clutch during short-term engagement[J].Wear,2003,254(5-6):474-491.
[8]周建钊,高亚明.主离合器摩擦片温度场的数值解法[J].解放军理工大学学报:自然科学版,2003(1):58-62.
[2]汤春球,祁建得,吕俊成,等.离合器摩擦副表面温度对摩擦因数的影响[J].润滑与密封,2009(7):66-68,73.
[3]徐晓科,莫易敏,汤春球,等.微型汽车离合器摩擦副温度场研究[J].现代制造工程,2009(1):74-76,92.
[4]孙冬野,胡丰宾,邓涛,等.湿式多片离合器翘曲特性模拟与试验[J].重庆大学学报,2010,33(5):1-6.
[5]Zagrodzki P.Numerical analysis of temperature fields and thermal stresses in the friction discs of a multidisc wet clutch[J].Wear,1985,101(3):255-271.
[6]Zagrodzki P.Analysis of thermomechanical phenomena in multidisc clutches and brakes[J].Wear,1990,140(2):291-308.
[7]Zagrodzki P,Truncone S A.Generation of hot spots in a wet multidisk clutch during short-term engagement[J].Wear,2003,254(5-6):474-491.
[8]周建钊,高亚明.主离合器摩擦片温度场的数值解法[J].解放军理工大学学报:自然科学版,2003(1):58-62.