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Influence of Gear-Shaft-Bearing Configurations on Vibration Characteristics of Spiral Bevel Gear Drives
ISSN: 2380-2162, e-ISSN: 2380-2170
Published June 19, 2020 by SAE International in United States
Citation: Hua, X., Qiang, S., and Hang, W., "Influence of Gear-Shaft-Bearing Configurations on Vibration Characteristics of Spiral Bevel Gear Drives," SAE Int. J. Veh. Dyn., Stab., and NVH 4(3):275-289, 2020, https://doi.org/10.4271/10-04-03-0019.
The design of the shafts and bearings significantly influences the dynamics of spiral bevel gears like most high-speed precision gears employed in the powertrains of emerging and traditional automobiles, trucks, and off-highway vehicles. In this article, the influence of design changes of gear-shaft-bearing configurations on the dynamics of spiral bevel gears is investigated by applying the finite element-based dynamic model. Two kinds of representative gear-shaft-bearing configurations, i.e., straddle-mounted pinion configuration and overhung-mounted pinion configuration, are compared from the viewpoint of the vibrations and dynamics of the spiral bevel-geared rotor system. The results show that the changes of gear-shaft-bearing configurations can lead to a significant change in spiral bevel gear dynamic responses, including dynamic mesh force, dynamic bearing loads, and so on. The underlying physics controlling these effects are also discovered.