Volume 35 Issue 10
Oct.  2020
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Article Navigation >  Journal of Aerospace Power  > 2020  >  35(10): 2186-2194
YUAN Wei, CHEN Guozhi, ZHANG Hongxiao. Modal analysis and dynamic stress test verification of shrouded pretwist turbine blade,[J]. Journal of Aerospace Power, 2020, 35(10): 2186-2194. doi: 10.13224/j.cnki.jasp.2020.10.019
Citation: YUAN Wei, CHEN Guozhi, ZHANG Hongxiao. Modal analysis and dynamic stress test verification of shrouded pretwist turbine blade,[J]. Journal of Aerospace Power, 2020, 35(10): 2186-2194. doi: 10.13224/j.cnki.jasp.2020.10.019
shu

Modal analysis and dynamic stress test verification of shrouded pretwist turbine blade,

doi: 10.13224/j.cnki.jasp.2020.10.019
  • 1.

    Hunan Aviation Powerplant Research Institute,Aero Engine Corporation of China,Zhuzhou Hunan 412002,China

  • 2.

    Aviation Key Laboratory of Aero-engine Vibration Technology,Hunan Aviation Powerplant Research Institute,Aero Engine Corporation of China,Zhuzhou Hunan 412002,China

  • Received Date: 2020-01-07
  • Publish Date: 2020-10-28
    Abstract
  • The non-linear contact prestress modal analysis mechanism of aero-engine shrouded pretwist turbine blade was introduced. The modal analysis of a turboshaft engine power turbine blade was carried out on the platform of ANSYS software. The results showed that the first order frequencies of 9-13 nodal diameter of blade blisk obtained by non-linear contact prestress modal analysis method were consistent with dynamic stress test frequencies, and the difference was basically stable at about 12%-13%. The results indicate that the calculation accuracy is improved obviously compared with the traditional method.

     

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    • References(18)
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