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RESEARCH PAPERS

Experiments on the Vibration Characteristics of a Rotor With Flexible, Damped Support

[+] Author and Article Information
Li-Tang Yan, Qi-Han Li

Beijing Aeronautical Institute, Beijing, Peoples Republic of China

J. Eng. Power 103(1), 174-179 (Jan 01, 1981) (6 pages) doi:10.1115/1.3230691 History: Received December 27, 1979; Online September 28, 2009

Abstract

Experiments were performed on a model rotor test rig with a disk located at the mide-span and a squeeze film damper and/or flexible support at one end and a rigid support at the other end. The damping effects of the flexible support and stress variation of the support itself have been tested. Emphasis was placed on the steadystate characteristics and the damping effects of the flexible supports and dampers with different radial clearances under various level of rotor unbalance. The dampers are without end seals and oil grooves. Comparative tests of the damping effects of the flexible, damped support were done during passing through the first and second critical speeds. Simulating tests of the vibration of the bearing housing excited by nonrotor exciting sources have been carried out and the damping effects of the oil film dampers on this type of vibrations were examined.

Copyright © 1981 by ASME
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