International Journal of Aeronautical and Space Sciences

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Predictions on the Internal Loads and Structural Deflection in a Full-scale Experimental Bearingless Rotor

  • Eun, WongJong (Department of Aerospace Engineering, Seoul National University) ;
  • Ryu, HanYeol (Department of Aerospace Engineering, Seoul National University) ;
  • Shin, SangJoon (Department of Aerospace Engineering, Institute of Advanced Aerospace Technology, Seoul National University) ;
  • Kee, YoungJung (Korea Aerospace Research Institute) ;
  • Kim, Deog-Kwan (Korea Aerospace Research Institute)
  • Received : 2014.12.31
  • Accepted : 2015.03.17
  • Published : 2015.03.30
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Abstract

In this paper, the unsteady aerodynamics and blade structural dynamics of an experimental bearingless rotor were analyzed. Due to the multiple load path and nonlinear behavior of a bearingless rotor, sophisticated structural modeling and structural-aerodynamic coupled analysis is required. To predict the internal load and deformation of an experimental bearingless rotor, trim analysis was implemented. The results showed good agreement when compared with those predicted by CAMRAD II the rotorcraft comprehensive analysis. It is possible to extend the present structural-aerodynamic combined analysis to further advanced configurations of the bearingless rotor in the future.

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References

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