Results 21 to 30 of about 7,657 (227)

Flight simulation from takeoff to yawing of eVTOL airplane with coaxial propellers by fluid-rigid body interaction

Advances in Aerodynamics, 2023
In this study, we adopt a coupled fluid-rigid body simulation using the moving computational domain method and multi-axis sliding mesh method for the takeoff, hovering, and yawing flight of an electric vertical takeoff and landing aircraft (eVTOL).
Ritsuka Gomi, Ayato Takii, Masashi Yamakawa, Shinichi Asao, Seiichi Takeuchi, Momoha Nishimura   +5 more
doaj   +1 more source

Role of flying cars in sustainable mobility

Nature Communications, 2019
Vertical takeoff and landing aircraft (VTOLs), or “flying cars” can shorten commute time and could play a niche role in sustainable mobility. The authors estimate that over long distances, fully-loaded electric VTOL taxis could result in fewer GHG ...
Akshat Kasliwal, Noah J. Furbush, James H. Gawron, James R. McBride, Timothy J. Wallington, Robert D. De Kleine, Hyung Chul Kim, Gregory A. Keoleian   +7 more
doaj   +1 more source

Prognostics for Lithium-ion batteries for electric Vertical Take-off and Landing aircraft using data-driven machine learning

Energy and AI, 2023
The health management of batteries is a key enabler for the adoption of Electric Vertical Take-off and Landing vehicles (eVTOLs). Currently, few studies consider the health management of eVTOL batteries.
Mihaela Mitici, Birgitte Hennink, Marilena Pavel, Jianning Dong   +3 more
doaj   +1 more source

Basic Considerations and Conceptual Design of a VSTOL Vehicle for Urban Transportation

Drones, 2022
On-demand air transport is an air-taxi service concept that should ideally use small, autonomous, Vertical Short Takeoff and Landing (VSTOL), “green”, battery-powered electric aircraft (eVSTOL).
Luca Piancastelli, Merve Sali, Christian Leon-Cardenas   +2 more
doaj   +1 more source

Hydrogen Fuel Cells and Batteries for Electric-Vertical Takeoff and Landing Aircraft

Journal of Aircraft, 2019
The primary drawbacks of battery-powered vertical takeoff and landing [electric vertical takeoff and landing (eVTOL)] aircraft are their poor range and endurance with practical payloads.
Wanyi Ng, Anubhav Datta
openaire   +1 more source

Design and Modeling of a High-Peak-Power Distributed Electric Propulsion System for a Super-STOL UAV

Drones
Electric short takeoff and landing (eSTOL) aircraft utilize the slipstream generated by distributed propellers to significantly increase the effective lift coefficient and reduce the takeoff and landing distances.
Jia Zong, Zhou Zhou, Jinhong Zhu, Zhuang Shao, Sanya Sun   +4 more
doaj   +1 more source

Hybrid Electrical Architecture for Vertical Takeoff and Landing Unmmaned Aerial Vehicule

, 2016
Recently, Unmanned Aerial Vehicles (UAV) become a significant research area due to their multiple domains of applications such as: search and rescue operations, aerial surveying of crops, inspecting power lines and pipelines, delivering medical supplies to remote or otherwise inaccessible regions.
Souad Berradi, Fouad Moutaouakkil, Hicham Medromi   +2 more
openaire   +1 more source

Control Design for Soft Transition for Landing Preparation of Light Compound-Wing Unmanned Aerial Vehicles Based on Incremental Nonlinear Dynamic Inversion

Applied Sciences, 2023
This paper proposes a soft switching mode for electric vertical takeoff and landing (eVTOL) compound-wing unmanned aerial vehicles (UAVs) to achieve a smooth transition between modes.
Zheng Ye, Yongliang Chen, Pengcheng Cai, Huitao Lyu, Zheng Gong, Jie Wu   +5 more
doaj   +1 more source

Rapid Blade Shape Optimization for Contra-Rotating Propellers for eVTOL Aircraft Considering the Aerodynamic Interference

Aerospace, 2023
The rising interest in the evolvability of electric vertical takeoff and landing (eVTOL) promises substantial potential in the field of urban air mobility (UAM).
Nanxuan Qiao, Tielin Ma, Jingcheng Fu, Ligang Zhang, Xiangsheng Wang, Pu Xue   +5 more
doaj   +1 more source

TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms

Advanced Robotics Research, EarlyView.
A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello, Tian Lan, Salaheldin Hassan, Maximilian Leutschafft, Erdem Ekinci, Sophie F. Armanini, Mirko Kovac, Basaran Bahadir Kocer   +7 more
wiley   +1 more source