Volume 21 Issue 2
Apr.  2006
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XU Zhao-tang, ZHU Ru-peng. Bifurcation Analysis of Main Resonance for a Helicopter Drive Shaft with Elastic Multi-Supports[J]. Journal of Aerospace Power, 2006, 21(2): 342-348.
Citation: XU Zhao-tang, ZHU Ru-peng. Bifurcation Analysis of Main Resonance for a Helicopter Drive Shaft with Elastic Multi-Supports[J]. Journal of Aerospace Power, 2006, 21(2): 342-348.

Bifurcation Analysis of Main Resonance for a Helicopter Drive Shaft with Elastic Multi-Supports

  • Received Date: 2005-04-30
  • Rev Recd Date: 2006-01-09
  • Publish Date: 2006-04-28
  • A bending motion equation of a tilting helicopter drive shaft with elastic multi-supports was derived by the theorem of motion for center of mass,Galerkin method and Dirac function.A bifurcation equation of the steady state main resonance was obtained based on the multiple scales method.The motion stability,topology structure of amplitude-frequency response curves etc.were analyzed.The results show that elastic intermediate supports plays the role of the limiters,which can improve the motion stability and increase frequency range of non-bifurcation between adjacent orders of main resonance.The bifurcation of main resonance can be removed by reducing the eccentricity and the order of main resonance and increasing damping of the driving shaft and intermediate supports.

     

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