International Journal of Aeronautical and Space Sciences

  • 제13권3호
  • /
  • Pages.349-360
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  • 2012
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  • 2093-274X(pISSN)
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  • 2093-2480(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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Validation of HART II Structural Dynamics Predictions Based on Prescribed Airloads

  • Sa, Jeong-H. (Department of Aerospace Information Engineering, Konkuk University) ;
  • You, Young-H. (Department of Aerospace Information Engineering, Konkuk University) ;
  • Park, Jae-S. (Department of Aerospace Information Engineering, Konkuk University) ;
  • Park, Soo-H. (Department of Aerospace Information Engineering, Konkuk University) ;
  • Jung, Sung-N. (Department of Aerospace Information Engineering, Konkuk University)
  • 투고 : 2012.05.11
  • 심사 : 2012.09.18
  • 발행 : 2012.09.30
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초록

In this study, the accuracy of CSD (Comprehensive Structural Dynamics) analysis on the evaluation of blade aeroelastic responses and structural loads of HART(Higher harmonic Aeroacoustic Rotor Test) II baseline rotor is assessed using a comprehensive rotorcraft dynamics code, CAMRAD II, and a nonlinear flexible multi-body dynamics analysis code, DYMORE. Considering insufficient measurement data for HART II rotor, prescribed airloads computed by a three-dimensional compressible flow solver KFLOW are used to replace the lifting-line airloads and thereby enhance the prediction capability of the comprehensive analyses. The CSD results on blade elastic deflections using the prescribed airloads indicate more oscillatory behavior than those by lifting-line based approaches, but the wave pattern becomes improved by including artificial damping into the rotor system. It is demonstrated that the structural load predictions are improved significantly by the prescribed airloads approach against the measured data, as compared with an isolated CSD analysis.

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참고문헌

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피인용 문헌

  1. BARAM: VIRTUAL WIND-TUNNEL SYSTEM FOR CFD SIMULATION vol.20, pp.4, 2015, https://doi.org/10.6112/kscfe.2015.20.4.028