The problem of obtaining adequate aerodynamical boundary conditions for an analyzed blade is important to predict resonant stresses. According to this, three different CFD approaches of stator-rotor modeling have been investigated for obtaining gas dynamic loading: 1. 3D averaged and then quasi-3D unsteady calculations. 2. Fully 3D unsteady calculations using commercial CFX solver. 3. Fully 3D unsteady calculations using the in-house solver. To carry out 3D structural analysis the ANSYS software and our subroutines have been applied. The methodology to estimate damper ratio for the different mode shapes and mode numbers has been developed. As a result, the tools to predict the resonant stress have been created where we tried to take into account all main factors affecting resonant stress level. The HPT first stage blade of a modern aircraft engine was chosen as an example of using our tools for prediction of resonant stresses level. A comparison of experimental data and obtained calculation results showed good agreement.
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ASME Turbo Expo 2007: Power for Land, Sea, and Air
May 14–17, 2007
Montreal, Canada
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
0-7918-4794-2
PROCEEDINGS PAPER
Tools for Estimating Resonant Stresses in Turbine Blades Available to Purchase
A. M. Sipatov,
A. M. Sipatov
JSC Aviadvigatel, Perm, Russia
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N. V. Gladisheva,
N. V. Gladisheva
JSC Aviadvigatel, Perm, Russia
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V. G. Avgustinovich,
V. G. Avgustinovich
JSC Aviadvigatel, Perm, Russia
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I. A. Povishev
I. A. Povishev
JSC Aviadvigatel, Perm, Russia
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A. M. Sipatov
JSC Aviadvigatel, Perm, Russia
N. V. Gladisheva
JSC Aviadvigatel, Perm, Russia
V. G. Avgustinovich
JSC Aviadvigatel, Perm, Russia
I. A. Povishev
JSC Aviadvigatel, Perm, Russia
Paper No:
GT2007-27196, pp. 297-306; 10 pages
Published Online:
March 10, 2009
Citation
Sipatov, AM, Gladisheva, NV, Avgustinovich, VG, & Povishev, IA. "Tools for Estimating Resonant Stresses in Turbine Blades." Proceedings of the ASME Turbo Expo 2007: Power for Land, Sea, and Air. Volume 5: Turbo Expo 2007. Montreal, Canada. May 14–17, 2007. pp. 297-306. ASME. https://doi.org/10.1115/GT2007-27196
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