NDLI: Practical experience with unstable compressors

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Practical experience with unstable compressors

Content Provider	NASA Technical Reports Server (NTRS)
Author	Malanoski, S. B.
Copyright Year	1980
Description	Using analytical mathematical modeling techniques for the system components, an attempt is made to gauge the destabilizing effects in a number of compressor designs. In particular the overhung (or cantilevered) compressor designs and the straddle-mounted (or simply supported) compressor designs are examined. Recommendations are made, based on experiences with stable and unstable compressors, which can be used as guides in future designs. High and low pressure compressors which operate well above their fundamental rotor-bearing lateral natural frequencies can suffer from destructive subsynchronous vibration. Usually the elements in the system design which contribute to this vibration, other than the shafting and the bearings, are the seals (both gas labyrinth and oil breakdown bushings) and the aerodynamic components.
File Size	518093
Page Count	10
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19800021208
Archival Resource Key	ark:/13960/t3033nr10
Language	English
Publisher Date	1980-01-01
Access Restriction	Open
Subject Keyword	Mechanical Engineering Rotary Stability Seals Stoppers Compressor Rotors Resonant Frequencies Bearings Compressor Efficiency Turboshafts Compressors Vibration Effects Mathematical Models Lateral Oscillation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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