Results 131 to 140 of about 2,703 (179)

Onboard System Design Challenges of eVTOLs

, 2021
Bertram, Oliver, Jäger, Florian, Voth, Viola, Rosenberg, Jan   +3 more
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Enabling Evtols

The Engineer, 2022
For electric aircraft to provide a greener future for urban transport, the supporting infrastructure is vital. Melissa Bradshaw explores some of the projects aiming to put this in place.
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eVTOL Rotor Noise in Ground Effect

Proceedings of the Vertical Flight Society 77th Annual Forum, 2021
This study examines a hovering three-bladed two-rotor system in close operation to the ground. The rotor pair is oppositely phased and is examined for two heights, H/D = 1 and H/D = 0.5. Loads for these rotors are generated using the CFD solver AcuSolve, as well as the Rensselaer Multicopter Analysis Code (RMAC).
Anastasios Lyrintzis, Brendan Smith, Farhan Gandhi, Richard Healy   +3 more
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Introducing an efficiency index to evaluate eVTOL designs

Technological Forecasting and Social Change, 2022
Raj Bridgelall is the program director for the Upper Great Plains Transportation Institute (UGPTI) Center for Surface Mobility Applications & Real-time Simulation environments (SMARTSeSM). ; The evolution of electric vertical takeoff and landing (eVTOL) aircraft as part of the Advanced Air Mobility initiative will affect our society and the environment
Raj Bridgelall, Taraneh Askarzadeh, Denver D. Tolliver   +2 more
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Battery Testing for The Evtol Future

Aerospace Testing International, 2023
Test equipment and expertise delivered for success in battery development
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Tilt-Wing eVTOL Takeoff Trajectory Optimization

Journal of Aircraft, 2020
Technological advances in areas such as battery technology, autonomous control, and ride-hailing services, combined with the scale-free nature of electric motors, have sparked significant interest ...
Shamsheer S. Chauhan, Joaquim R. R. A. Martins   +1 more
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Revolutionizing EVTOL Testing

Aerospace Testing International
How new test technologies helped Volocopter accelerate the VoloCity development
Daniel Hermyt, Christian Pastucha
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Airports and the rise of eVTOL

Journal of Airport Management, 2022
A new form of aircraft — electric Vertical Take-off and Landing (eVTOL) — holds the potential to upend the transportation industry. Some eVTOLs are crosses between a helicopter and a traditional aeroplane, combining the vertical take-off of helicopters with the horizontal flight of aeroplanes. Others take on a more drone-like appearance.
Beth Bernitt, Crawford Burden, Jan Moeller, John Sulsona   +3 more
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Tiltwing eVTOL Transition Trajectory Optimization

Journal of Aircraft
This paper studies transition trajectory optimization for a tiltwing electrical vertical takeoff and landing (eVTOL) aircraft configuration and evaluates the benefits of equipping it with fluid injection active flow control (AFC). Using a three-degree-of-freedom model of the aircraft’s longitudinal dynamics, both hover-to-cruise (forward) and cruise ...
Leo Panish, Marko Bacic
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Fuel Cell Application for Small eVTOL UAVs

Proceedings of the Vertical Flight Society 76th Annual Forum, 2020
This paper analyses the possibility of using hydrogen fuel cells as main energy provider for small to medium-sized eVTOL UAVs. A simplified model for eVTOL UAVs, which covers all relevant areas of aircraft design, including aerodynamics, structural mechanics, propulsion and systems modelling, is presented.
Thomas Seren, Mirko Hornung
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