Description of a Dynamical Framework to Analyse the Helicopter Tail Rotor Articles uri icon

publication date

  • December 2021

start page

  • 171

end page

  • 180


  • 2


  • 1


  • In this work, a tail rotor is modelled with the aid of a multibody software to provide an
    alternative tool in the field of helicopter research. This advanced application captures the complex
    behaviour of tail rotor dynamics. The model has been built by using VehicleSim software ( Version 1.0 ,
    Mechanical Simulation Corporation, Ann Arbor, MI, USA) specialized in modelling mechanical
    systems composed of rigid bodies. The dynamic behaviour and the control action are embedded in
    the code. Thereby, VehicleSim does not need an external link to another software package. The rotors
    are articulated, the tail rotor considers flap and feather degrees of freedom for each of the equispaced
    blades and their dynamic couplings. Details on the model"s implementation are derived, emphasising
    the modelling aspects that contribute to the coupled dynamics. The obtained results are contrasted
    with theoretical approaches and these have displayed to agree with the expected behaviour. This
    rotorcraft model helps to study the performance of a tail rotor under certain dynamic conditions.


  • modelling; helicopter; tail rotor; dynamic