Results 191 to 200 of about 362,448 (239)

Dynamic Load Analysis of an eVTOL Aircraft Propulsion System

Proceedings of the Vertical Flight Society 79th Annual Forum, 2023
Electric Vertical Take-Off and Landing (eVTOL) aircraft are considered as a solution to support urban transportation, including cargo delivery (Unmanned Aerial Vehicles, UAVs) and passenger travel (Urban Air Mobility, UAM). Over the last few years many different concepts have been derived and tested to varying levels of maturity.
Dexin Wang, Jennifer Peeples, Geirgui Valente, Andrew Johnston, Younes Riache, Hanafy Mahmoud   +5 more
openaire   +1 more source

Ultralightweight High-Efficiency Buck-Boost DC-DC Converters for Future eVTOL Aircraft With Hybrid Power Supply

IEEE Transactions on Transportation Electrification
The trend toward urbanization intensifies road congestion and thus increases interest in research on urban air mobility. Electric motors enable lightweight distributed propulsion in all-electric vertical take-off and landing (eVTOL) aircraft which ...
D. Menzi, Luc Imperiali, Elias Bürgisser, Martin Ulmer, J. Huber, J. W. Kolar   +5 more
semanticscholar   +1 more source

Motor and Drive Design for eVTOL Aircraft

Proceedings of the Vertical Flight Society 80th Annual Forum
The design of a powertrain for an eVTOL is a complex, multidisciplinary challenge whose solution is best approached as a constrained optimization problem. We use a motor and drive optimization tool based on both first principles and empirical models to examine the design space for a medium-sized eVTOL aicraft.
Ryan Rahn, Robert McDonald, Jack Myers, Brad Paden, Michael Ricci   +4 more
openaire   +1 more source

Studies on Off-Nominal Rotor Aerodynamics for eVTOL Aircraft

2023
As electric Vertical Takeoff and Landing (eVTOL) aircraft become increasingly common, improved understanding of rotor aerodynamics in off-nominal conditions becomes ever more important. A better fundamental understanding of these effects can help inform vehicle design, leading to lower power consumption and improved performance.
openaire   +1 more source

Subscale Tiltrotor eVTOL Aircraft Dynamic Modeling and Flight Control Software Development

Proceedings of the Vertical Flight Society 81st Annual Forum and Technology Display
This paper describes the dynamic modeling and flight control software development efforts for a subscale tiltrotor electric vertical takeoff and landing (eVTOL) aircraft built at NASA Langley Research Center.
Benjamin M Simmons, Kasey Ackerman, Garrett D. Asper, Matthew Gray, Steven Snyder, Rachel Axten, Steven Geuther, Ryan Chan   +7 more
semanticscholar   +1 more source

Crashworthiness Design Optimization for an eVTOL Aircraft

2022 IEEE International Conference on Robotics and Biomimetics (ROBIO), 2022
Menglong Ding, Anhuan Xie, Shiqiang Zhu, Wei Song, Jiandong Cai, Xufei Yan, Pengyu Zhao, Jason Gu, Yanyan Zhang   +8 more
openaire   +1 more source

A Yaw-roll Coupling Suppression Control Method for eVTOL Aircraft with Nonuniform Propulsion Layout

Journal of Physics: Conference Series
In recent years, electric vertical take-off and landing (eVTOL) aircraft have become a primary focus in urban air mobility research. eVTOL aircraft integrate the advantages of multirotor and fixed-wing designs, enabling vertical take-off and landing as ...
Xu Ni, Mingkai Wang, Xuejun Li, Shuguang Zhang   +3 more
semanticscholar   +1 more source

Flight-Test System Identification Methodology and Hover Results for a Vectored-Thrust eVTOL Aircraft

Proceedings of the Vertical Flight Society 81st Annual Forum and Technology Display
This paper describes an ongoing aircraft system identification effort for an industry prototype electric vertical takeoff and landing (eVTOL) vehicle.
Benjamin M Simmons, Andrew Rapsomanikis, George Jacobellis, NK Ofodile, Thomas Hamilton, Max Ma   +5 more
semanticscholar   +1 more source

Aero-Propulsive Damping Characterization for eVTOL Aircraft Using Free Motion Wind-Tunnel Testing

AIAA SCITECH 2025 Forum
This paper describes an electric vertical takeoff and landing (eVTOL) aircraft system identification method applied using three-degree-of-freedom (3DOF) free-motion wind-tunnel testing.
Benjamin M. Simmons, K. Ackerman, Garrett D. Asper   +2 more
semanticscholar   +1 more source

Design of Safety Pattern for eVTOL Aircraft Systems Based on MBSE—A Comprehensive Approach

Systems Engineering
Safety is always of paramount importance in civil aviation. To shift safety considerations from post validation to prior construction, an architecture design method has been proposed based on the MBSE approach, aiming to integrate safety requirements ...
Boyang Li, Peng Wang, Jie Bai, Nve Xiao
semanticscholar   +1 more source