Full Content is available to subscribers

Subscribe/Learn More  >

Methods for Generating Rotordynamic Models in Retrofits of Large Steam Turbines From On-Site Measurements

[+] Author Affiliations
Florian C. Hiss, Gerta Zimmer

Siemens Energy, Muelheim, Germany

Paper No. GT2014-26217, pp. V07AT31A021; 11 pages
  • ASME Turbo Expo 2014: Turbine Technical Conference and Exposition
  • Volume 7A: Structures and Dynamics
  • Düsseldorf, Germany, June 16–20, 2014
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4576-9
  • Copyright © 2014 by ASME


In turbine modernization projects accurate knowledge about the existing configuration and the prediction of the retrofitted configuration is vital for the success of the retrofit. Great progress has been made in recent years with laser-scanning techniques to capture the geometry of the existing configuration and convert it into CAD models for further design work. Equally important are proper structural dynamics models which are vital for reliably predicting the behavior of the new configuration at an early project stage. This paper discusses the application of on-site experimental modal analysis and vibration measurements during turbine operation from which the rotordynamic model of the turbine-generator including its supports and residual unbalance can be derived. Frequency response data and identification techniques are applied in combination with finite-element modeling to update the rotordynamic model based on measurements. The capabilities and limitations of the presented methods for predicting the vibration behavior by means of the established model are shown for the example of a large steam turbine unit retrofit.

Copyright © 2014 by ASME
Topics: Steam turbines



Interactive Graphics


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

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