Modeling support effects-finite element and experimental modal methods

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

doi:10.1115/96-GT-403

Modeling support effects-finite element and experimental modal methods

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

Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-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 language	English
Title of host publication	Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General
ISBN (Electronic)	9780791878767
DOIs	https://doi.org/10.1115/96-GT-403
State	Published - 1996
Event	ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996 - Birmingham, United Kingdom Duration: Jun 10 1996 → Jun 13 1996

Publication series

Name	ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996
Volume	5

Conference

Conference	ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996
Country/Territory	United Kingdom
City	Birmingham
Period	6/10/96 → 6/13/96

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

Access to Document

10.1115/96-GT-403

Cite this

Buckles, J. R., Rouch, K. E., & Baker, J. R. (1996). Modeling support effects-finite element and experimental modal methods. In Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General (ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996; Vol. 5). https://doi.org/10.1115/96-GT-403

@inproceedings{9c340012caf5494aab4029531746f3ba,

title = "Modeling support effects-finite element and experimental modal methods",

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.",

author = "Buckles, {Jonathan R.} and Rouch, {Keith E.} and Baker, {John R.}",

note = "Publisher Copyright: Copyright {\textcopyright} 1998 by ASME.; null ; Conference date: 10-06-1996 Through 13-06-1996",

year = "1996",

doi = "10.1115/96-GT-403",

language = "English",

series = "ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996",

booktitle = "Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General",

}

Buckles, JR, Rouch, KE & Baker, JR 1996, Modeling support effects-finite element and experimental modal methods. in Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General. ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996, vol. 5, ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996, Birmingham, United Kingdom, 6/10/96. https://doi.org/10.1115/96-GT-403

Modeling support effects-finite element and experimental modal methods. / Buckles, Jonathan R.; Rouch, Keith E.; Baker, John R.

Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General. 1996. (ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996; Vol. 5).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Modeling support effects-finite element and experimental modal methods

AU - Buckles, Jonathan R.

AU - Rouch, Keith E.

AU - Baker, John R.

PY - 1996

Y1 - 1996

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84930437565&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84930437565&partnerID=8YFLogxK

U2 - 10.1115/96-GT-403

DO - 10.1115/96-GT-403

M3 - Conference contribution

AN - SCOPUS:84930437565

T3 - ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996

BT - Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General

Y2 - 10 June 1996 through 13 June 1996

ER -

Modeling support effects-finite element and experimental modal methods

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this