Volume 31 Issue 6
Jun.  2016
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LI Lin, MA Hao-ran, WANG Pei-yi. Excitation characteristics of rotor/stator-interaction flow field and resonant design of bladed disk[J]. Journal of Aerospace Power, 2016, 31(6): 1368-1376. doi: 10.13224/j.cnki.jasp.2016.06.012
Citation: LI Lin, MA Hao-ran, WANG Pei-yi. Excitation characteristics of rotor/stator-interaction flow field and resonant design of bladed disk[J]. Journal of Aerospace Power, 2016, 31(6): 1368-1376. doi: 10.13224/j.cnki.jasp.2016.06.012

Excitation characteristics of rotor/stator-interaction flow field and resonant design of bladed disk

doi: 10.13224/j.cnki.jasp.2016.06.012
  • Received Date: 2014-09-29
  • Publish Date: 2016-06-28
  • Based on the computation and analysis of three-dimensional unsteady flow induced by rotor/stator-interaction, the characteristics of flow excitation to bladed disk were studied, including frequency-components and circumferential wave-components in the wake of stator. By combining the resonant condition of bladed disk, a design principle was given for determining the stator-structural period from the view of avoiding resonance, namely, the stator-structural period should ensure that in the wake excitation there was neither modal frequency-component of bladed disk nor circumferential wave-component corresponding to the nodal diameter of the bladed disk. The formula was given to predict frequency-components and circumferential wave-components in wake of stator, making it easier to determinate stator-structural period in design phase. It is shown by numerical analysis that this method can determinate the rationality (inducing the resonance or not) of stator-structural period without need of performing numerical simulation of three-dimensional unsteady flow induced by rotor/stator-interaction.

     

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