Effects of Flexible Mounting and Damping on the Synchronous Response of a Rotor-Shaft System

[+] Author and Article Information
H. Ōta

Department of Mechanical Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Japan

Y. Kanbe

Toyota Motor Company, Ltd., Toyota, Japan

J. Appl. Mech 43(1), 144-149 (Mar 01, 1976) (6 pages) doi:10.1115/1.3423766 History: Received February 01, 1975; Revised July 01, 1975; Online July 12, 2010


Synchronous response of a rotor supported by a damped, flexibly mounted bearing is similar to the well-known one of a rectilinear vibratory system having two degrees of freedom, or a dynamic vibration absorber. Designing the flexible support with an appropriate combination of equivalently concentrated mass of pedestal, bearing support stiffness, and optimum damping, the peak amplitude of a rotor-shaft system is found to be kept nearly to the value of rotor eccentricity. Experimental results of rotor unbalance resonance coincide well with the analytical ones.

Copyright © 1976 by ASME
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