Study of Effect of Variation in Micro-Geometry of Gear Pair on Noise Level at Transmission

Paper #:
  • 2015-26-0130

Published:
  • 2015-01-14
DOI:
  • 10.4271/2015-26-0130
Citation:
Singh, P. and K, S., "Study of Effect of Variation in Micro-Geometry of Gear Pair on Noise Level at Transmission," SAE Technical Paper 2015-26-0130, 2015, doi:10.4271/2015-26-0130.
Pages:
7
Abstract:
Gear noise and vibration in automobile transmissions is a phenomenon of great concern. Noise generated at the gearbox, due to gear meshing, also known as gear whine, gets transferred from the engine cabin to the passenger cabin via various transfer paths and is perceived as air borne noise to the passengers in the vehicle. This noise due to its tonal nature can be very uncomfortable to the passengers. Optimizing micro-geometry of a gear pair can help in improving the stress distribution on tooth flank and reducing the sound level of the tonal noise generated during the running of the gearbox when that gear pair is engaged. This technical paper contains the study of variation in noise level in passenger cabin and contact on tooth flank with change in micro-geometry parameters (involute slope and lead slope) of a particular gear pair. Further scope of study has been discussed at the end of the paper.
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