Izvorni znanstveni članak
https://doi.org/10.17559/TV-20170908130808
Conceptual Design and Flight Envelopes of a Light Aircraft for Mars Atmosphere
Marko Ž. Ekmedžić
orcid.org/0000-0003-4971-0890
; European XFEL GmbH, Detector development group, Holzkoppel 4, 22869 Hamburg, Germany
Aleksandar Bengin
orcid.org/0000-0002-9225-8601
; University of Belgrade, Faculty of Mechanical Engineering, Aeronautical Department, Kraljice Marije 16, 11000 Belgrade, Serbia
Boško Rašuo
orcid.org/0000-0002-0912-6844
; University of Belgrade, Faculty of Mechanical Engineering, Aeronautical Department, Kraljice Marije 16, 11000 Belgrade, Serbia
Sažetak
In this paper is presented a new conceptual design of the light aircraft for Mars atmosphere, ALPEMA. It allows atmospheric dropping (aeroshell), as well as direct take-off from Martian surface. Complex atmosphere demanded for simplified yet efficient wing geometry, capable of maximizing Lift-to-Drag ratio. Martian atmospheric pressure, density, temperature and speed of sound variations, demand a scrutinized powerplant choice. Efficient aspect ratio and drag polar lead to optimal flight envelopes as a proof of sustainability of ALPEMA project. Special performances and basic aerodynamics provide boundaries and constraints of the project, in line with similar approaches. Chosen propeller allows for ALPEMA to use maximum power capabilities of its engine, described through Vmin and Vmax, which are significant inputs for flight envelope. Envelope provides effective width and profile for a variety of possible missions. ALPEMA’s specific propeller and engine are a certain comparative advantage, together with its flight envelope.
Ključne riječi
aerodynamics; atmosphere; flight; light aircraft; flight envelope; flight speed; Mars
Hrčak ID:
205933
URI
Datum izdavanja:
22.9.2018.
Posjeta: 2.120 *