A MODEL-BASED DESIGN STUDY OF GEARBOX INDUCED NOISE
A clear trend in recent years is increased legal and customer demands for lower noise levels for construction machinery.Even if the gear whine type of noise is not the loudest source, its pure tone is easily distinguished from other noise sources and it is perceived as highly unpleasant and gives an impression of poor quality. A general design requirement is to the gear whine related noise at least 15 dB lower than other noise sources. The origin of this noise is the gear mesh, where vibrations are excited, mainly due to the transmission error. This paper presents ongoing model-based research at Volvo CE that is focused on investigating the influence of design parameters, gear-finishing methods, and assembly operations on gear whine noise.