CVT belt noise of scooters
by M. Pan, W. Lu, T. Shieh
International Journal of Vehicle Design (IJVD), Vol. 30, No. 3, 2002

Abstract: Rubber CVT-belts are extensively applied in automotive industry. The tones of belt whistle noise, which vary with belt transmission speed during low- and high-ratio operations, annoy drivers, especially when the throttle is closed and the vehicle is in motoring condition. In this study, two types of scooters with different cylinder volume are taken as examples to approach this problem for reducing belt noise. The varying order of CVT belt noise can be exactly tracked. Therefore, this whistle-like noise can be certainly identified as CVT belt noise. Some design parameters of the CVT belt and structure, which influence the radiation of this annoying noise, are investigated. To reduce CVT belt noise, some useful design modifications are made and justified.

Online publication date: Fri, 15-Aug-2003

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