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Diagnosis of Installation Problems of Turbomachinery

[+] Author Affiliations
A. El-Shafei

Cairo University, Giza, Egypt

Paper No. GT2002-30284, pp. 525-534; 10 pages
doi:10.1115/GT2002-30284
From:
  • ASME Turbo Expo 2002: Power for Land, Sea, and Air
  • Volume 4: Turbo Expo 2002, Parts A and B
  • Amsterdam, The Netherlands, June 3–6, 2002
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-3609-6 | eISBN: 0-7918-3601-0
  • Copyright © 2002 by ASME

abstract

Many turbomachines perform well in factory testing, but experience difficulties in the field, mainly due to installation problems. The problems encountered range from misalignment and frame distortion to structural resonance and skid leveling. In this paper, a structured vibration analysis procedure is developed to identify installation problems in rotating machinery. Spectral analysis is the main tool for vibration analysis of turbomachinery faults, however many problems appear at a single frequency. In this case phase analysis, time waveform, orbit and operating deflection shape (ODS) analysis become very important. The paper presents a novel methodology for the diagnosis of installation problems in turbomachinery and provides examples of cases with installation faults, and discusses methods of identification and solution.

Copyright © 2002 by ASME

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