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RESEARCH PAPERS: Rotor Dynamics

On the Dynamic Analysis of a Rigid Rotor-Gear Pair-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. Vib., Acoust., Stress, and Reliab 111(3), 234-240 (Jul 01, 1989) (7 pages) doi:10.1115/1.3269847 History: Received May 01, 1987; Revised August 01, 1988; Online November 23, 2009

Abstract

This paper is an attempt to provide a dynamic analysis of a rigid rotor-gear pair-hydrodynamic bearing system with journal motions in the oil film space of the bearings. A mathematical model has been developed considering the kinematics of the gear pair as affected by journal motions and using a concept of an instantaneous line of action. Effects of bearing parameters on dynamic tooth loads have been studied. The load-speed environment of hydrodynamic bearings supporting the geared rotors is shown to be affected by journal motions in bearings. Results indicate that, for the given gear pair and the given static load-speed conditions, dynamic increments in gear tooth loads and bearing loads vary with bearing parameters (viz. clearances and oil viscosities).

Copyright © 1989 by ASME
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