Flight dynamics and control of an eVTOL concept aircraft with a propeller-driven rotor

Umberto Saetti, Jacob Enciu, Joseph F. Horn

Research output: Contribution to conferencePaperpeer-review

Abstract

The objective of this investigation is three-fold. First, to assess the flight dynamics of an electric Vertical Take-Off and Landing (eVTOL) concept aircraft with a propeller-driven rotor. Second, to develop a Stability and Control Augmentation System (SCAS) for this concept aircraft. Third, to verify the potential safety benefits of the concept aircraft by analyzing the autorotation performance following a total loss of power. The paper begins with a description of the simulation model, including a detailed discussion on the inflow model of the propellers that drive the main rotor. Next, the flight dynamics are assessed at hover and in forward flight. A SCAS based on Dynamic Inversion (DI) is developed to provide stability and desired response characteristics about the roll, pitch, yaw, and heave axes for speeds ranging from hover to 80 kts. Additionally, an RPM governor is implemented to hold the main rotor angular speed constant at its nominal value. Finally, simulations that make use of the SCAS are performed to analyze the autorotation performance following total loss of power.

Original languageEnglish (US)
StatePublished - 2020
EventVertical Flight Society's 76th Annual Forum and Technology Display - Virtual, Online
Duration: Oct 5 2020Oct 8 2020

Conference

ConferenceVertical Flight Society's 76th Annual Forum and Technology Display
CityVirtual, Online
Period10/5/2010/8/20

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Control and Systems Engineering

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