Volume 27 Issue 5
May  2012
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YU Zhi-hao, YANG Wei-dong, DENG Jing-hui, ZHANG Cheng-lin. Model of rotor aeroelastic stability using dynamics of flexible multbody systems[J]. Journal of Aerospace Power, 2012, 27(5): 1122-1130.
Citation: YU Zhi-hao, YANG Wei-dong, DENG Jing-hui, ZHANG Cheng-lin. Model of rotor aeroelastic stability using dynamics of flexible multbody systems[J]. Journal of Aerospace Power, 2012, 27(5): 1122-1130.

Model of rotor aeroelastic stability using dynamics of flexible multbody systems

  • Received Date: 2011-09-16
  • Publish Date: 2012-05-28
  • Aeroelastic model of rotor was developed using dynamics of flexible multibody systems.The modeling of components of rotor was independent,so different rotor configurations can be modeled and the model was appropriate for new configuration rotor aeroelastic analysis.A large deflection beam model,suitable for aeroelastic analysis of rotor,was incorporated.To simplify the form of constraint equations,dynamic equations of component including a joint were deduced.To avoid singularities for large rotations,the angular constraint equations,expressed by Rodriguez parameters,were modified by introduced a nominal motion.To verify the correctness of the developed method,the aeroelastic analysis of helicopter rotor and influence study of blade structure parameters were implemented.It demonstrates that the method is very useful for improving computation precision of aeroelastic stability.

     

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