Towards a holistic predesign approach using rotor cant of EVTOL aircraft - DTIS ONERA
Communication Dans Un Congrès Année : 2024

Towards a holistic predesign approach using rotor cant of EVTOL aircraft

Résumé

Pre-design analysis of a Lift+Cruise eVTOL configuration was performed using cant as a primary design parameter in order to illustrate the need for a comprehensive approach during the conceptual design phase. Rotor rotation direction was also considered from design requirement and controllability perspectives and was found to follow the choice of cant angle direction. Rotor cant was shown to have an impact on performance, controllability, stability, safety, failure tolerance, and motor design requirements. Introducing cant was shown to cause minor penalties to hover power requirements resulting from changed orientation of thrust vectors and an increase in the design gross weight in exchange for resilience to two-engine-inoperative failures and significantly improved yaw control derivatives at low speeds, the addition of a purely translational lateral control axis, the ability to reduce the negative impact of blade breaks, and the potential to stabilize rigid-body modes that are unstable for an uncanted system.
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Dates et versions

hal-04815192 , version 1 (02-12-2024)

Identifiants

  • HAL Id : hal-04815192 , version 1

Citer

Pierre-Marie Basset, Jean-Paul Reddinger, Raphaël Perret, Nathan Beals, J Michael Vegh. Towards a holistic predesign approach using rotor cant of EVTOL aircraft. European Rotorcraft Forum 2024, Sep 2024, Marseille, France. ⟨hal-04815192⟩

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