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Development of Probabilistic Lifing System for Advanced Turbine Rotor Alloys

[+] Author Affiliations
M. Gorelik, Y. Lenets, M. N. Menon

Honeywell ES&S, Phoenix, AZ

Paper No. GT2005-68770, pp. 463-466; 4 pages
doi:10.1115/GT2005-68770
From:
  • ASME Turbo Expo 2005: Power for Land, Sea, and Air
  • Volume 4: Turbo Expo 2005
  • Reno, Nevada, USA, June 6–9, 2005
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4727-6 | eISBN: 0-7918-3754-8
  • Copyright © 2005 by ASME

abstract

Application of advanced Nickel based alloys in gas turbine rotors has risen significantly in the last two decades. It was shown by other authors that the deterministic lifing approach may be inadequate for a range of advanced turbine alloys under certain service conditions, and that a probabilistic approach results in a more relevant physics-based predictive model for such cases. Additionally, recent changes in the engine certification and design guidelines published by the FAA, Air Force, Army and other agencies call for increased application of probabilistic analysis. Thus, probabilistic lifing models become one of the key enablers for successful design and application of advanced turbine engine materials. This paper will discuss the main elements of probabilistic lifing system development for a new alloy, including material characterization requirements, selection of appropriate modeling techniques and validation plans.

Copyright © 2005 by ASME
Topics: Alloys , Rotors , Turbines

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