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针对湿式离合器在接合过程中存在的磨损和高温的问题,通过引用湿式离合器表面系数,以重型非公路汽车湿式离合器为研究对象,运用微凸体分布模型,研究湿式离合器在不同材料状态下摩擦因数和制动接合特性变化规律。分析结果表明,使用韦伯微凸体分布分析效果比使用传统分布模型接合时间长,接近实际工况;通过引入表面系数和韦伯分布后,在离合器接合初始阶段存在转矩波动,该转矩波动是造成震颤的主要原因;在接合末期存在制动转矩增加,可以通过引入斜率为正的摩擦因数-速度曲线解决,此外磨平材料的啮合时间要比跑合阶段的时间短。
Aiming at the problems of wear and high temperature of wet clutch in the process of joining, the wet clutch of heavy duty on-road vehicle is researched by referring to the surface coefficient of wet clutch and the distribution of friction coefficient of wet clutch under different material conditions And brake engagement characteristics of changes. The analysis results show that the results of Weber’s distribution of asperities are longer than that of the traditional distribution model and close to the actual working conditions. The torque ripple is present at the initial stage of clutch engagement by introducing the surface coefficient and Weber’s distribution The main reason for the tremor is that there is an increase in braking torque at the end of the engagement, which can be solved by introducing a friction factor-velocity curve with a positive slope. In addition, the meshing time of the lapping material is shorter than that during the running-in phase.