- Tytuł:
- Design and optimisation of main rotor for ultralight helicopter
- Autorzy:
- Stalewski, W.
- Powiązania:
- https://bibliotekanauki.pl/articles/243641.pdf
- Data publikacji:
- 2017
- Wydawca:
- Instytut Techniczny Wojsk Lotniczych
- Tematy:
-
rotorcraft
ultralight helicopter
main rotor
airfoil
computer-aided design
optimisation - Opis:
- A modern main rotor, dedicated to the ultralight helicopter, has been designed and optimised. Due to assumed simplicity of the rotor design and taking into account some technological constraints, the principal purpose of the presented research was to design a dedicated airfoil which, when applied on the main-rotor blades, would influence satisfactory improvement in a performance of the ultralight helicopter, especially in fast flight. The design and optimisation process has been supported by a computational methodology. The in-house software has been used for direct and inverse design of shapes of the rotor-blade airfoils. Aerodynamic properties of the airfoils as well as the helicopter main rotor were evaluated based on both the two-dimensional and three-dimensional flow simulations conducted using the ANSYS FLUENT software that was used to solve U/RANS equations. Based on the results of conducted computational simulations of fast flight of the ultralight helicopter, it can be concluded that the newly designed main rotor, compared to the baseline, may give certain improvement in helicopter performance in fast flight. In addition, the application of this newly designed rotor may lead to increase of a maximum speed of the helicopter flight, due to the greater lift force achievable by this rotor on the retreating blade, which is favourable from point of view of keeping of a lateral balance of the helicopter in fast flight.
- Źródło:
-
Journal of KONES; 2017, 24, 4; 287-295
1231-4005
2354-0133 - Pojawia się w:
- Journal of KONES
- Dostawca treści:
- Biblioteka Nauki