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Experiences with nonsynchronous forced vibration in centrifugal compressorsThe high subsynchronous vibrations which are often forced vibrations caused by flow instabilities, such as stage stall were examined. Modifications to improve the rotor stability by changing the bearings or seals have little effects on the subsynchronous vibrations. Understanding of the differences between forced vibrations and self excited vibrations to properly diagnose the problem and to correct it, is recommended. A list of characteristics of the two types of subsynchronous vibration is presented.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Smith, D. R.
(Engineering Dynamics, Inc. San Antonio, TX, United States)
Wachel, J. C.
(Engineering Dynamics, Inc. San Antonio, TX, United States)
Date Acquired
August 12, 2013
Publication Date
December 1, 1984
Publication Information
Publication: NASA. Lewis Research Center Rotordynamic Instability Problems in High-Performance Turbomachinery
Subject Category
Mechanical Engineering
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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