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Wet belt friction-induced dynamic instability and noise in Automotive Accessory Belt Drive Systems
Courtesy of Inderscience Publishers
This paper presents an investigation of V-ribbed belt (Micro-V™) wet friction and friction-induced slip noise in Accessory Belt Drive Systems (ABDS). A set of experiments was conducted by using an industry standard test rig and a standard material friction tester. A theoretical analysis and model are presented to elaborate the results. The tribological property of the interface is characterised to be unsteady mixed lubrication with water, which possesses the feature of negative slope of friction with velocity. The friction-induced dynamic instability and noises are also investigated. It is shown that the noise is directly associated with the negative slope of the friction-velocity curve.
Keywords: V-ribbed belt, pulley, front accessory drive, vehicle noise, NVH, squeals, rattles, wet belt, mixed lubrication, automotive engine, wet friction, slip noise, vehicle noise, dynamic instability, belt drive systems
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