Volume 21 Issue 3
Jun.  2006
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LI Sheng-quan, YANG Zheng-shan, SUN Jian-guo. Elimination of Coupling Instability Using Few Parallel Connection Notch Filters for Helicopter Rotor/Power Train[J]. Journal of Aerospace Power, 2006, 21(3): 606-609.
Citation: LI Sheng-quan, YANG Zheng-shan, SUN Jian-guo. Elimination of Coupling Instability Using Few Parallel Connection Notch Filters for Helicopter Rotor/Power Train[J]. Journal of Aerospace Power, 2006, 21(3): 606-609.

Elimination of Coupling Instability Using Few Parallel Connection Notch Filters for Helicopter Rotor/Power Train

  • Received Date: 2005-05-30
  • Rev Recd Date: 2005-10-08
  • Publish Date: 2006-06-28
  • A solution was proposed which eliminated the coupling instability between helicopter power transmitting train torsional vibration system and power control system.A combination of notch filters in parallel and filters selected according to engine working modes have been used to achieve torsional vibration filtration.The modification of the notch filter made the extra phase-shifting introduced to the control system passband reduced and so the control performance was improved.The method was demonstrated successfully on a helicopter integrated test-bed.

     

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