The simulation of dynamic behavior for gear shaft bearing system

Previsione del comportamento dinamico delle ruote dentate Gear dynamics force and displacement forecast As a very key part in automobile powertrain system, transmission’s durability,stability, and NVH performance all have critical significance for vehicle’s quality and performance. When the transmission is running, all of its transfer parts and support parts are suffering huge loads, which will make the transfer parts deform and deviate from the original position even be damaged. Meanwhile, manufacturing defects of parts and error of assembly also will influence the working precision and quality of the transmission. Therefore, analyzing and optimizing the loading status is an effective way to improve transmission’s quality and performance. This main stucture of the research discusses different forms of gear-shaft-bearing systems, and analyzes the calculation of bearing reaction force and displacement under the gear meshing state from the stress balance condition. In the study, the different forms of systems were modeled through simulink to predict bearing reaction forces and displacements.