Modeling support effects-finite element and experimental modal methods

Jonathan R. Buckles, Keith E. Rouch, John R. Baker

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The effects of support/foundation dynamics are often significant in high speed turbomachinery, and can affect the stability and response to unbalance. In some cases additional critical speeds are introduced, related to resonances in the foundation or interaction with rotor resonances of foundation resonances. This paper reviews several methods for representing these effects, including (1) reduced matrices from finite element substructures (ANSYS, for example), (2) matrices generated from modal data, and (3) direct use of experimental transfer functions. These methods are implemented in a finite element rotor program in a PC-DOS environment. The application of the methods to two laboratory rotor configurations described and results presented. Situations with a foundation resonance above and near the rotor critical are included. The importance of including coupling effects between supports is shown.

Original languageEnglish
Title of host publicationManufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General
ISBN (Electronic)9780791878767
DOIs
StatePublished - 1996
EventASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996 - Birmingham, United Kingdom
Duration: Jun 10 1996Jun 13 1996

Publication series

NameASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996
Volume5

Conference

ConferenceASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996
Country/TerritoryUnited Kingdom
CityBirmingham
Period6/10/966/13/96

Bibliographical note

Publisher Copyright:
Copyright © 1998 by ASME.

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Nuclear Energy and Engineering
  • Aerospace Engineering
  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'Modeling support effects-finite element and experimental modal methods'. Together they form a unique fingerprint.

Cite this