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A New Experimental Method of Combined Fatigue of Actual Turbine Disk Mortise Teeth at Elevated Temperature FREE

[+] Author Affiliations
Rongqiao Wang, Jingxu Nie

Beijing Univ. of Aero. & Astro., Beijing, China

Paper No. 96-TA-020, pp. V001T08A006; 4 pages
doi:10.1115/96-TA-020
From:
  • ASME 1996 Turbo Asia Conference
  • ASME 1996 Turbo Asia Conference
  • Jakarta, Indonesia, November 5–7, 1996
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7877-4
  • Copyright © 1996 by ASME

abstract

For studying the L-HCCF of an actual turbine disk mortise teeth at elevated temperature, this paper presents a new experimental system, using actual disk as experimental component, ingeniously achieving the combined loading (simulating low cycle radial centrifugal force and high cycle crosswise vibration of blade), the high-frequency induction local heating (550 °C constant temperature), the control of high cycle vibrating frequency and amplitude, and the crack real-time detection. The experimental result is identical with the practical flight failure. This method can be easily popularized for the L-HCCF studying of many components.

Copyright © 1996 by ASME
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