Effect of Shaft-bearing Configurations on Spiral Bevel Gear Mesh and Dynamics

Paper #:
  • 2011-01-1551

Published:
  • 2011-05-17
Citation:
Hua, X., Lim, T., and Peng, T., "Effect of Shaft-bearing Configurations on Spiral Bevel Gear Mesh and Dynamics," SAE Technical Paper 2011-01-1551, 2011, https://doi.org/10.4271/2011-01-1551.
Pages:
15
Abstract:
Spiral bevel gear dynamics are significantly affected by the flexibilities of shafts and bearings. In this study, a new shaft-bearing model has been proposed for computing the effective support stiffness. The results are applied to the lumped parameter dynamic model of spiral bevel geared rotor system with 3-bearing straddle-mounted pinion configuration. Also, using the multi-degree of freedom lumped parameter dynamic model and quasi-static three-dimensional finite element tooth contact analysis program, the responses of two typical shaft-bearing configurations used in automotive applications, that are the 3-bearing straddle mounted pinion configuration and the 2-bearing overhung mounted pinion configuration, are compared. The comparative analysis along with a set of parametric studies highlights their different contributions to the spiral bevel gear mesh characteristics and dynamic response. Though spiral bevel gear is used in this study, the methods and conclusions could be reasonably applied to other types of gear applications especially non-parallel types.
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