CBL - Campus del Baix Llobregat

Projecte llegit

Títol: eVTOL aircraft concept - Vtail study and design

Estudiants que han llegit aquest projecte:

Director/a: MELLIBOVSKY ELSTEIN, FERNANDO PABLO

Departament: FIS

Títol: eVTOL aircraft concept - Vtail study and design

Data inici oferta: 21-07-2022     Data finalització oferta: 21-03-2023


Estudis d'assignació del projecte:
    GR ENG SIST AEROESP
Tipus: Individual
 
Lloc de realització: EETAC
 
Paraules clau:
Airframe, body, landing gear, wings, stabilizer, elevator, rudder, Vtail, electrical Ducten Fan (eDfan)
 
Descripció del contingut i pla d'activitats:
The aim of this project is to design and assemble all surfaces and
devices intended for lift production of an eVTOL aircraft. All
lift devices combined will provide an optimum lift/drag ratio
during cruise, and sufficient lift and controls for T/O and LAND
phases.

The main focus will be placed on the Vtail shape and dimensions,
including both simulation and, if possible, experiment in wind
tunnel.

The work plan will be as follows:

0) Application of conceptual technology to forward the current
(preliminary) design of the Vtail.
1) Study of the Vtail aerodynamic efficiency in an OEI situation
and its contribution to aircraft manoeuvrability.
2) Analysis of the Vtail aerodynamic interaction with the
airframe.
3) Primary and secondary flight control devices.
4) Lift integration study of all external parts of the aircraft
combined.
 
Overview (resum en anglès):
Over the past few decades, aviation has accounted for a significant percentage of global CO2 emissions, contributing to the climate change our planet is experiencing today. To
face this problem, a potential new form of aviation, known as Urban Air Mobility (UAM), has been introduced in recent years.

One of the main technologies that UAM refers to is the concept of Electric Vertical Takeoff and Landing (eVTOL). This new generation of VTOL aircraft aims to fly more economically and environmentally than ever by combining the convenience of vertical/short takeoff and landing like a helicopter with the efficient aerodynamic flight of an airplane.

The eVTOL ONAerospace design will have as its main objective to fulfil all the functions previously presented during rescue and/or medical assistance missions, dividing the study and design of each part of the aircraft among the different members that are part of the ONAerospace group.

This final degree project will consist of carrying out an in-depth study for the implementation of a V-tail, also known as a ¿butterfly¿, with the aim of fulfilling the main functions of any aircraft stabilizer. The possibility of implementing control surfaces that are capable of providing control in engine failure conditions (OEI) will also be studied. The tail design will follow the footsteps of numerous tail design books. The process will first consist in the design of a conventional tail with a horizontal and vertical stabilizer and finally, a conversion to an unconventional V-tail will be carried out trying to maintain the same aerodynamic performance as the previously designed conventional tail.

To achieve the aforementioned, an analytical investigation will be carried out to determine the geometry of the tail as well as for the selection of the most convenient aerodynamic
airfoil by means of Computational Fluid Mechanics (CFD). The study will be carried out by comparing various airfoils typically used for tail design and, from there, selecting the one that best suits the requirements to be met.

Finally, it has been possible to present a valid and viable solution capable of meeting all the requirements established by ONAerospace. On the other hand, it has been possible to size the control surfaces of the V-tail, which are capable of responding to a situation of engine failure without having to make huge deflections, which would result in the generation of great aerodynamic resistance.

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