Finite Element Aircraft Simulation of Turbulence

Details

• Creators:
  McFarland, R.E.
• Corporate Contributors:
  Ames Research Center
• Subject/TRT Terms:
  • Atmospheric turbulence
  • Wakes
  • Rotary wing aircraft
  • Propeller driven aircraft
  • Flight characteristics
  • Flight dynamics
  • Dynamic models
  • Computer models
  • Research
  • Autospectra
  More +
• DOI:
  https://doi.org/10.21949/1402792
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Ames Research Center
• Description:
  A Simulation of Rotor Blade Element Turbulence (SORBET) model has been developed for real-time aircraft simulation that accommodates stochastic turbulence and distributed discrete gusts as a function of the terrain. This model is applicable to conventional aircraft, V/STOL aircraft, and disc rotor model helicopter simulations. Vehicle angular activity in response to turbulence is computed from geometrical and temporal relationships rather than by using the conventional continuum approximations that assume uniform gust immersion and low frequency responses. The model produces rotational rates as well as air mass translational velocities in response to both stochastic and deterministic disturbances, where the discrete gusts and turbulence magnitudes may be correlated with significant terrain features or ship models.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/12586/dot_12586_DS1.pdf
• File Type:
  [PDF - 500.51 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:67515ed07f0096406ff7724b47e702feff2980167a0962ed99d96b3e734ef144e60d28159159b054581701f8c3df2cbffa06aa19cfdbe37d2169b90005c0873d