Volume 33 Issue 05
May  2007
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Zeng Liang, Li Lin. Design of damping-ring for vibration control in labyrinth air seals[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(05): 518-522. (in Chinese)
Citation: Zeng Liang, Li Lin. Design of damping-ring for vibration control in labyrinth air seals[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(05): 518-522. (in Chinese)

Design of damping-ring for vibration control in labyrinth air seals

  • Received Date: 05 Jun 2006
  • Publish Date: 31 May 2007
  • The design and application of severed damping-ring to rotor/stator components are effective in protecting labyrinth air seals and the cylindrical walls of annular chambers against flexural vibration and fatigue failures excited by various disturbing forces. The dynamic analysis of contact system was complex due to its non-linear and chaotic behavior in the process. The theory for vibration control in labyrinth air seals was built up by elastic mechanics and contact mechanics. The dynamic response of labyrinth air seals with different damping-ring and contact pressure was analyzed by dynamic compliance method. The simulation results confirmed the validity of the proposed model and method and showed that the damping-ring could reduce the amplitude of the labyrinth air seals notably. There were the best parameters of damping-ring, which lead to the best effect of vibration control. The vibration control of damping-ring was different to different modal shape of labyrinth air seals.

     

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