scholarly journals Conceptual Design of Fuel Cell Based Hybrid Unmanned Air Vehicle

2021 ◽  
Vol 5 (1) ◽  
pp. 14-20
Author(s):  
Sinan KEİYİNCİ ◽  
Kadir AYDIN
Keyword(s):  
Fuel Cell ◽  
Conceptual Design ◽  
Unmanned Air Vehicle ◽  
Air Vehicle

Design and Initial Flight Tests of a Hydrogen Fuel Cell Powered Unmanned Air Vehicle (UAV)

2019 ◽  
Vol 26 (1) ◽  
pp. 433-444 ◽  
Author(s):  
Thomas A. Ward ◽  
Norhisyam Jenal
Keyword(s):  
Fuel Cell ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Flight Tests ◽  
Unmanned Air Vehicle ◽  
Air Vehicle

Power Installation of an Unmanned Air Vehicle Based on a Hydrogen Fuel Cell

2019 ◽  
Author(s):  
Ivan V. Vasyukov ◽  
Nikita A. Faddeev ◽  
Andrew S. Kramarov ◽  
Andrew A. Gummel ◽  
Vladimir S. Puzin ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Power Installation ◽  
Hydrogen Fuel Cell ◽  
Hydrogen Fuel ◽  
Unmanned Air Vehicle ◽  
Air Vehicle

scholarly journals Design and Testing of a Vertical Take-Off and Landing UAV Optimized for Carrying a Hydrogen Fuel Cell with a Pressure Tank

2020 ◽  
Vol 08 (04) ◽  
pp. 279-285
Author(s):  
Christophe De Wagter ◽  
Bart Remes ◽  
Rick Ruijsink ◽  
Freek van Tienen ◽  
Erik van der Horst
Keyword(s):  
Fuel Cell ◽  
Force Balance ◽  
Area Network ◽  
Hydrogen Fuel Cell ◽  
Forward Flight ◽  
Pressure Tank ◽  
Unmanned Air Vehicle ◽  
Air Vehicle ◽  
Battery Technology ◽  
Design And Testing

Flight endurance is still a bottleneck for many types of unmanned air vehicle (UAV) applications. While battery technology improves over the years, for flights that last an entire day, batteries are still insufficient. Hydrogen-powered fuel cells offer an interesting alternative but pose stringent requirements on the platform. The required cruise power must be sufficiently low and flying with a pressurized tank poses new safety and shape constraints. This paper proposes a hybrid transitioning UAV that is optimized towards carrying a hydrogen tank and fuel cell. Hover is achieved using 12 redundant propellers connected to a dual Controller Area Network (CAN) bus and dual power supply. Forward flight is achieved using a tandem wing configuration. The tandem wing not only minimizes the required wingspan to minimize perturbations from gusts during hover, but it also handles the very large pitch inertia of the inline pressure tank and fuel cell very well. During forward flight, 8 of the 12 propellers are folded while the tip propellers counteract the tip vortexes. The propulsion is tested on a force balance and the selected fuel cell is tested in the lab. Finally, a prototype is built and tested in-flight using battery power. Stable hover, good transitioning properties, and stable forward flight are demonstrated.

Automatic safe area detection for novel unmanned air vehicle

2018 ◽  
Author(s):  
David Seiferth ◽  
Matthias Heller ◽  
Florian Holzapfel
Keyword(s):  
Unmanned Air Vehicle ◽  
Safe Area ◽  
Air Vehicle

EXPERIMENTAL RESULTS ON COMMAND AND CONTROL OF UNMANNED AIR VEHICLE SYSTEMS

2007 ◽  
Vol 40 (15) ◽  
pp. 239-244 ◽  
Author(s):  
Pedro Almeida ◽  
Ricardo Bencatel ◽  
Gil M. Gonçalves ◽  
JoãTo Borges Sousa ◽  
Christoph Ruetz
Keyword(s):  
Command And Control ◽  
Experimental Results ◽  
Unmanned Air Vehicle ◽  
Air Vehicle ◽  
Vehicle Systems ◽  
And Control

A Q-learning approach to automated unmanned air vehicle demining

2011 ◽  
Vol 9 (1) ◽  
pp. 83-92 ◽  
Author(s):  
Silvia Ferrari ◽  
Greyson Daugherty
Keyword(s):  
Learning Approach ◽  
Q Learning ◽  
Unmanned Air Vehicle ◽  
Air Vehicle

Aerodynamic analysis of the Pioneer unmanned air vehicle

1992 ◽  
Author(s):  
ROBERT BRAY ◽  
DANIEL LYONS ◽  
RICHARD HOWARD
Keyword(s):  
Aerodynamic Analysis ◽  
Unmanned Air Vehicle ◽  
Air Vehicle
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