0

Full Content is available to subscribers

Subscribe/Learn More  >

Acoustically-Induced Structural Fatigue of Impeller Discs: A Brief Note

[+] Author Affiliations
Frantisek L. Eisinger, Robert E. Sullivan

Foster Wheeler Energy Corporation, Clinton, NJ

Paper No. GT2002-30604, pp. 1063-1069; 7 pages
doi:10.1115/GT2002-30604
From:
  • ASME Turbo Expo 2002: Power for Land, Sea, and Air
  • Volume 5: Turbo Expo 2002, Parts A and B
  • Amsterdam, The Netherlands, June 3–6, 2002
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-3610-X | eISBN: 0-7918-3601-0
  • Copyright © 2002 by ASME

abstract

Coincidence of both the out-of-plane structural wave numbers and frequencies of the impeller disc with the corresponding wave numbers and frequencies of the acoustic waves inside the machine casing may lead to structural-acoustic coupling, to extreme dynamic loading of the impeller disc and consequently to fatigue failures. Of primary concern is the interaction between the diametral structural modes and the higher order diametral acoustic modes. Avoiding the match between the wave numbers and assuring sufficient separation between structural and acoustic frequencies will prevent structural-acoustic coupling and eliminate the dangers of impeller disc failures from acoustic loadings. In this paper, the coupling phenomena and the relationship between the structural and acoustic fields will be discussed more broadly. A numerical example will also be included for illustration.

Copyright © 2002 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In