Results 11 to 20 of about 7,657 (227)

Primary parameters design method for distributed electric propulsion unmanned aerial vehicle

Xibei Gongye Daxue Xuebao, 2021
Distributed electric propulsion technology brings new ideas to the design of unmanned aerial vehicle(UAV), such as improving aerodynamic efficiency and propulsive efficiency, and new concept of vertical/short takeoff and landing configurations.

doaj   +1 more source

Evaluation and Comparison of Hybrid Wing VTOL UAV with Four Different Electric Propulsion Systems

Aerospace, 2021
Electric propulsion technology has attracted much attention in the aviation industry at present. It has the advantages of environmental protection, safety, low noise, and high design freedom.
Jianan Zong, Bingjie Zhu, Zhongxi Hou, Xixiang Yang, Jiaqi Zhai   +4 more
doaj   +1 more source

Development and Trend Analysis of Vertical Takeoff and Landing Fixed Wing UAV

Hangkong gongcheng jinzhan, 2022
The vertical takeoff and landing(VTOL)fixed wing unmanned aerial vehicle(UAV)has many advantages,such as low requirements for takeoff and landing site,good maneuverability,high cruise speed and long endurance,etc.,which is a hot topic in the aviation ...
WANG Kelei, ZHOU Zhou, MA Yuewen, DU Wanshan, GUO Jiahao, LI Xu, ZHANG Yang, SUN Pengbo   +7 more
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Sizing and Mission Profile Analysis of the Hybrid-Electric Propulsion System for Retrofitting a Fixed Wing VTOL Aircraft

International Journal of Aerospace Engineering, 2022
Hybrid-electric technology can be expected to improve the performance of fixed wing vertical takeoff and landing (VTOL) aircraft. In this paper, we demonstrated a method of retrofitting a single-energy propulsion system prototype with a hybrid-electric ...
Jianan Zong, Bingjie Zhu, Zhongxi Hou, Xixiang Yang, Jiaqi Zhai   +4 more
doaj   +1 more source

Distributed deep reinforcement learning for autonomous aerial eVTOL mobility in drone taxi applications

ICT Express, 2021
The urban aerial mobility (UAM) system, such as drone taxi or air taxi, is one of future on-demand transportation networks. Among them, electric vertical takeoff and landing (eVTOL) is one of UAM systems that is for identifying the locations of ...
Won Joon Yun, Soyi Jung, Joongheon Kim, Jae-Hyun Kim   +3 more
doaj   +1 more source

Feasibility Study of Short Takeoff and Landing Urban Air Mobility Vehicles Using Geometric Programming [PDF]

, 2018
Electric Short Takeoff and Landing (eSTOL) vehicles are proposed as a path towards implementing an Urban Air Mobility (UAM) network that reduces critical vehicle certification risks and offers advantages in vehicle performance compared to the widely ...
Antcliff K. R., ASTM, Borer N. K., Burton M., County, Deere K. A., Drela M., Drela M., Federal Aviation Administration, Harish A., Howard C. E., Justin C. Y., Kokam, Kreimeier M., Kurtz D. W., Mass GIS, McCormick B. W., National Aeronautics and Space Administration, Patterson M. D., Perry D., Raymer D. P., Roe M. H., Seeley B. A., Siegel D., Stoll A. M., Stoll A. M., Uber, Vascik P. D., Warren Hoburg P. K.   +28 more
core   +1 more source

Development and testing of vertical take-off and landing aerial vehicle with tandem electric ducted fan motor [PDF]

Proceedings of the Estonian Academy of Sciences, 2023
Due to the complexity of control mechanisms, vertical take-off and landing (VTOL) aerial vehicles have not found their way into widespread commercial use. Thanks to the availability of advanced technology, it is possible to develop simpler systems.
Kristjan Pütsep, Tõivo Nerep, Hans Tiismus, Anton Rassõlkin   +3 more
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Wireless Communication for Flying Cars

Frontiers in Communications and Networks, 2021
Current ground-based transportation systems are subjected to various challenges, including the high cost of infrastructure development, limited land space, and a growing urban population.
Nasir Saeed, Tareq Y. Al-Naffouri, Mohamed-Slim Alouini   +2 more
doaj   +1 more source

Light-driven micro/nanobots. [PDF]

Nanophotonics
Abstract Modern technological evolution witnesses a fast‐paced progress in the design, science, and technology of light‐driven micro/nanomachines in the recent past. These micromachines have found enormous applications as micro/nanoscale manipulators, micromachined space exploration components, nano‐sized cell positioning and control, and micro ...
Vardhan RK, Kumar M, Xavier J.
europepmc   +2 more sources

Flight Test of L₁ Adaptive Control on 120-kg-Class Electric Vertical Take-Off and Landing Vehicles

IEEE Access, 2021
Electric vertical take-off and landing vehicles (eVTOLs) are a novel class of transportation that can facilitate point-to-point travel. However, the control of eVTOLs traversing from the gyro to the fixed-wing flight mode poses daunting challenges in the
Zian Wang, Zheng Gong, Chi Zhang, Jun He, Shengchen Mao   +4 more
doaj   +1 more source