Full Content is available to subscribers

Subscribe/Learn More  >

Evaluation of the Energy Dissipated as Friction/Heat Between Turbines Following Shaft Failure

[+] Author Affiliations
I. Rojo, A. Psarra, V. Pachidis, P. Pilidis

Cranfield University, Cranfield, Bedsfordshire, UK

Paper No. GT2010-23302, pp. 1345-1352; 8 pages
  • ASME Turbo Expo 2010: Power for Land, Sea, and Air
  • Volume 6: Structures and Dynamics, Parts A and B
  • Glasgow, UK, June 14–18, 2010
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4401-4 | eISBN: 978-0-7918-3872-3
  • Copyright © 2010 by ASME


The prevention of primary failure that may lead to a potentially hazardous event has always been a predominant aim in engine design and development. In the event of a shaft failure event, the turbine operates under high power conditions which may lead to blade release or disc burst. A potential mechanism to eliminate quickly the power of the free running turbine involves the dissipation of the kinetic energy as friction/heat due to structural interaction between turbines. In the scope of this paper, a finite element model is developed to study the energy dissipated due to structural interaction. A coupled thermo-mechanical analysis is carried out taking into account the temperature increase in the turbines’ structure following the severe impact. The coupled thermo-mechanical analysis addresses the effects of temperature rise and material softening on the evolution of the shaft failure event. The part of the kinetic energy converted into thermal and the wear rate of the seal segment structure are investigated in order to assess the potential of the contact mechanisms to act towards reducing the power of the free running turbine as quickly as possible due to blade tangling. Finally, the dependency of frictional energy and wear rate on the structural damping and the definition of the thermal material model have been studied highlighting their importance in the impact simulations.

Copyright © 2010 by ASME
Topics: Friction , Heat , Turbines , Failure



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