A paradigm shift in rotorcraft design is being led by the prospect of propulsive forces being distributed across multiple rotors, such that each rotor can be directly driven by a dedicated electric motor. Crucially, some designers attempt to utilize these direct-drive mechanisms as the sole form of primary flight control. The feasibility of this design choice remains to be proven at the scales required for passenger transport. The paper presents a preliminary handling qualities analysis, for a six-passenger (1,200 lb payload) electric Hexacopter conceptual design, which shows that Level 1 handling qualities for limited agility operations are possible, provided that electric powertrains can deliver transient peak torques twice as high as the rated continuous torque of the conceptual design. Preliminary predictions are then substantiated by the results from a piloted handling qualities evaluation conducted in the NASA-Ames Vertical Motion Simulator (VMS). Three eVTOL configurations (a quadrotor, a hexacopter and a lift+cruise) with flight control laws implementing different levels of stability augmentation (Attitude Command-Attitude Hold and Translational Rate Command response types) were evaluated in four low speed and hover tasks requiring various levels of agility and precision.


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    Titel :

    Handling Qualities of Multirotor RPM-Controlled Electric-Vertical Take-Off and Landing (eVTOL) Aircraft for Urban Air Mobility (UAM)


    Beteiligte:
    C. Malpica (Autor:in) / S. Withrow-Maser (Autor:in) / J. Aires (Autor:in) / S. Schuet (Autor:in) / P. Suh (Autor:in) / K. Barnes (Autor:in) / C. Hanson (Autor:in) / A. Ruan (Autor:in) / G. Altamirano (Autor:in) / J. Foster (Autor:in)

    Erscheinungsdatum :

    2023


    Format / Umfang :

    22 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Handling Qualities of Multirotor RPM-Controlled Electric-Vertical Take-Off and Landing (eVTOL) Aircraft for Urban Air Mobility (UAM)

    Malpica, C. / Withrow-Maser, S. / Aires, J. et al. | British Library Conference Proceedings | 2023



    POWER SOURCE ASSEMBLY FOR AN ELECTRIC VERTICAL TAKE-OFF AND LANDING (EVTOL) AIRCRAFT

    DONOVAN SEAN RICHARD / VERNA RAFFAELLO / WIEGMAN HERMAN et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Mathematical Models for Scheduling Electric Vertical Take-Off and Landing (eVTOL) Vehicles at Urban Air Mobility Vertiports

    Espejo-Díaz, Julián Alberto / Alfonso-Lizarazo, Edgar / Montoya-Torres, Jairo R. | Springer Verlag | 2023


    MULTIROTOR AIRCRAFT THAT IS ADAPTED FOR VERTICAL TAKE-OFF AND LANDING

    FINK AXEL / KIESEWETTER UWE / KICKER KLAUS | Europäisches Patentamt | 2020

    Freier Zugriff