Accession Number : ADP000365

Title :   Stability Evaluation of Rotor/Bearing System by Perturbation Tests,


Personal Author(s) : Bently,Donald E. ; Muszynska,Agnieszka

Report Date : 1982

Pagination or Media Count : 16

Abstract : The paper presents the stability study of rotor/bearing systems. Even though it was limited to study of a fully lubricated bearing subject to oil whirl, and further limited to low eccentricity region for linearity and with only one type of lubricant, it can be seen that the perturbation methodology, together with the sorting of the impedance terms into direct and quadrature with respect to input force can be very useful to the general study of stability. Further, the concept of active feedback should assist to increase knowledge in rotor system stability. While there remains a large amount of study to be accomplished, perhaps some more tools are available to assist this field of analysis.

Descriptors :   *Turbomachinery, *Rotors, *Bearings, *Stability, Workshops, Perturbations, Vibration, Mathematical models

Distribution Statement : APPROVED FOR PUBLIC RELEASE