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Han Feng, Xu Weijian, Jiang Wentao, et al. Structural strength analysis of twin-web turbine disk for aero-engines[J]. Journal of Aerospace Power, 2026, 41(X):20250436 doi: 10.13224/j.cnki.jasp.20250436
Citation: Han Feng, Xu Weijian, Jiang Wentao, et al. Structural strength analysis of twin-web turbine disk for aero-engines[J]. Journal of Aerospace Power, 2026, 41(X):20250436 doi: 10.13224/j.cnki.jasp.20250436

Structural strength analysis of twin-web turbine disk for aero-engines

doi: 10.13224/j.cnki.jasp.20250436
  • Received Date: 2025-09-21
    Available Online: 2026-04-18
  • In response to the design requirements of high thrust-to-weight ratio aero-engines, a single-web turbine disk of an aero-engine was selected as the benchmark. The temperature field was numerically calculated using ANSYS Fluent and the stress field was calculated using ABAQUS. The distribution characteristics of circumferential stress, radial stress and Von-Mises equivalent stress of single-web and twin-web turbine disks were compared and analyzed. The influence law of the web inclination angle (θ) on the stress level of the twin-web turbine disk was mainly studied. Results show that compared with the reference single-web turbine disk, the structural weight reduction effect of the twin-web turbine disk is obvious. The weights of the twin-web turbine disks with θ=8°, θ=9°, θ=10°, θ=11° and θ=12° are reduced by 22.78%, 23.23%, 23.42%, 23.2% and 23.16% respectively. The structural characteristics of the twin-web transmission path make the load and stress distribution of the twin-web turbine disk more uniform. The stress level of the twin-web turbine disk with θ=12° is the best in the study range, and its maximum circumferential stress, maximum Von-Mises equivalent stress, maximum average circumferential stress at the key points and maximum Von-Mises equivalent stress at the key points are respectively reduced by 15.66%, 16.03%, 15.65% and 17.09% compared with the twin-web turbine disk with θ=8°. In the future, the web inclination angle θ should be regarded as a key factor when designing the structure of the twin-web turbine disk.

     

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