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    • Study of the Judder Characteristics of Friction Material for an Automobile Clutch and Test Verification
    Authors: Zhengfeng, Yan; Hangsheng, Li; Hairui, Lei;  Advisor: -;  Co-Author: - (2023)

    The friction judder characteristics during clutch engagement have a significant influence on the NVH of a driveline. In this research, the judder characteristics of automobile clutch friction materials and experimental verification are studied. First, considering the stick-slip phenomenon in the clutch engagement process, a detailed 9-degrees-of-freedom (DOF) model including the body, each cylinder of the engine, clutch and friction lining, torsional damper, transmission and other driveline parts is established, and the calculation formula of friction torque in the clutch engagement process is determined. Second, the influence of the friction gradient characteristics on the amplificat...