Conceptual Design Study on Electrical Vertical Take Off and Landing Aircraft for Urban Air Mobility Applications

2019 ◽  
Author(s):  
Matthias Kraenzler ◽  
Manfred Schmitt ◽  
Eike Stumpf
Keyword(s):  
Conceptual Design ◽  
Urban Air ◽  
Design Study

scholarly journals Configuration Study of Electric Helicopters for Urban Air Mobility

Aerospace ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 54
Author(s):  
Julia A. Cole ◽  
Lauren Rajauski ◽  
Andrew Loughran ◽  
Alexander Karpowicz ◽  
Stefanie Salinger
Keyword(s):  
Conceptual Design ◽  
Urban Areas ◽  
Design Space ◽  
Design Method ◽  
Urban Air ◽  
Main Rotor ◽  
Potential Benefits ◽  
Compound Helicopter ◽  
Configuration Changes

There is currently interest in the design of small electric vertical take-off and landing aircraft to alleviate ground traffic and congestion in major urban areas. To support progress in this area, a conceptual design method for single-main-rotor and lift-augmented compound electric helicopters has been developed. The design method was used to investigate the feasible design space for electric helicopters based on varying mission profiles and technology assumptions. Within the feasible design space, it was found that a crossover boundary exists as a function of cruise distance and hover time where the most efficient configuration changes from a single-main-rotor helicopter to a lift-augmented compound helicopter. In general, for longer cruise distances and shorter hover times, the lift-augmented compound helicopter is the more efficient configuration. An additional study was conducted to investigate the potential benefits of decoupling the main rotor from the tail rotor. This study showed that decoupling the main rotor and tail rotor has the potential to reduce the total mission energy required in all cases, allowing for increases in mission distances and hover times on the order of 5% for a given battery size.

An integrated conceptual design study using span morphing technology

2013 ◽  
Vol 25 (8) ◽  
pp. 989-1008 ◽  
Author(s):  
Rafic M Ajaj ◽  
Michael I Friswell ◽  
Erick I Saavedra Flores ◽  
Andy Keane ◽  
Askin T Isikveren ◽  
...  
Keyword(s):  
Conceptual Design ◽  
Design Study ◽  
Morphing Technology

Conceptual Design Study on Inertial Confinement Reactor “Senri-II”

1983 ◽  
Vol 4 (2P3) ◽  
pp. 854-859 ◽  
Author(s):  
N. Nakamura ◽  
H. Omura ◽  
S. Ido ◽  
S. Nakai ◽  
C. Yamanaka
Keyword(s):  
Conceptual Design ◽  
Inertial Confinement ◽  
Design Study

A Conceptual Design Study of the Construction of Hydrodynamic Control Surfaces

1994 ◽  
Vol 10 (04) ◽  
pp. 258-273
Author(s):  
A. D. Karstensen ◽  
A. C. Fairlie-Clarke ◽  
I. E. Winkle
Keyword(s):  
Polyurethane Foam ◽  
Conceptual Design ◽  
Inner Core ◽  
Surface Shape ◽  
Frame Structure ◽  
Design Study ◽  
The Face ◽  
Steel Frame Structure ◽  
Further Development ◽  
Control Surfaces

Hydrodynamic control surfaces are traditionally built as steel fabrications. While this gives a very strong structure, it is rather heavy and costly, it is difficult to achieve smooth surfaces, and the steel is susceptible to erosion, corrosion and marine fouling. This paper describes a conceptual design study aimed at creating a competitive advantage for the manufacturers of control surfaces by using modern materials in a composite structure. The conceptual design process, as applied here, starts by specifying the design requirements for the construction of control surfaces and listing a set of criteria against which the concept designs can be evaluated. A total of six concept designs are described and evaluated in comparison with a traditional steel fabrication, and one concept is selected for further development. This comprises a light steel frame structure with thin steel inner face plates enclosing an inner core that is filled with polyurethane foam. The surface shape is also formed with polyurethane foam poured between the face plates and a surface mold plate. Finally, the surface is sprayed with a polyurethane elastomer coating.

Plasma focus spacecraft conceptual design study

1995 ◽  
Author(s):  
Blair P. Bromley ◽  
John DeMora ◽  
Brett Casey ◽  
Paul Humm ◽  
Erik Kirstein ◽  
...  
Keyword(s):  
Conceptual Design ◽  
Plasma Focus ◽  
Design Study

Conceptual design study on an accelerator based BNCT facility

1999 ◽  
Author(s):  
Hitoshi Yokobori ◽  
Makoto Sasaki ◽  
Toshiyuki Yamanaka
Keyword(s):  
Conceptual Design ◽  
Design Study
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