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Research of an Advanced Turbine Disk for High Thrust-Weight Ratio Engine

[+] Author Affiliations
Xiuli Shen, Shaojing Dong, Zhiying Chen

Beijing University of Aeronautics and Astronautics, Beijing, China

Paper No. GT2014-25715, pp. V07AT28A006; 7 pages
doi:10.1115/GT2014-25715
From:
  • 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

abstract

To meet the design requirements of the high thrust-weight ratio engine, the twin-web turbine disk is systematically investigated. The structural topology optimization is carried out with the evolutionary structural optimization method based on the conventional turbine disk, and a new shape of the twin-web turbine disk is presented. It is similar to the existing ones but with significant improvement for the strengthened ring is not needed. Then the finite element analysis and size optimization are conducted according to the results of topology optimization. The weight of the twin-web disk is reduced by 23.6% compared to the conventional design with the same stress level. Then a preliminary analysis of the welding residual stress is performed. Finally, a rotating three-dimensional photoelastic test is carried out to verify the rationality of the design and the accuracy of the calculation results.

Copyright © 2014 by ASME

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