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    Dynamic Friction Characterization and Modeling of Tripod Constant Velocity Joints

    Published: Nov 2012

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    Constant velocity (CV) joints are an integral part of modern vehicles. CV joints exhibit superior vibration performance compared with universal joints because they eliminate uneven rotating torque via their self-centering ability. CV joints provide coupling forces and moments between connected substructures as well as localized damping dissipation [1,2]. In modern vehicles, CV joints have become a standard design of driveshaft for front-wheel-drive (FWD) passenger cars. Figure 25.1 shows a typical FWD configuration in a vehicle with driveshaft installations. Each driveshaft comprises two types of CV joints—namely fixed (outboard) and plunging (inboard) types—connected via a shaft, and their primary function is to transmit the engine torque to the wheels with CV. In this work, the emphasis is on a class of plunging CV joints called tripod CV joints, as shown in Figure 25.2, which have been especially favored for automatic transmission vehicles. This is because of their noise and vibration advantages because they offer lower plunging resistance compared with ball-type joints [1]. Note that tripod CV joints also fulfill the conditions of CV operation [1].

    Author Information:

    Lee, Chul-Hee
    Inha University, Incheon,

    Polycarpou, Andreas A.
    University of Illinois,

    Committee/Subcommittee: D02.0B

    DOI: 10.1520/MNL6220121210425