On Dynamic Gear Tooth Loading Due to Coupled Torsional-Lateral Vibrations in a Geared Rotor-Hydrodynamic Bearing System

[+] Author and Article Information
B. Kishor, S. K. Gupta

Department of Mechanical Engineering, Institute of Technology, Banaras Hindu University, Varanasi-221 005, India

J. Tribol 111(3), 418-425 (Jul 01, 1989) (8 pages) doi:10.1115/1.3261941 History: Received January 11, 1989; Online October 29, 2009


This paper is an attempt to provide an estimation of dynamic gear tooth loading due to coupled torsional-lateral vibrations in a geared rotor-hydrodynamic bearing system. The effects of mass unbalance and geometrical eccentricity of the pinion and the combined effects of manufacturing errors and profile modifications of gear teeth have been considered. Gear mesh compliance and damping at gear teeth are also included in the analysis. Journal lateral motions in the oil film spaces of hydrodynamic bearings are shown to be associated with variations in the angular velocity ratio of meshing gears and with dynamic loading of gear teeth. The journal center is observed to trace trajectories of limited amplitudes under stable operating conditions.

Copyright © 1989 by ASME
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