CBL - Campus del Baix Llobregat

Projecte llegit

Títol: eVTOL aircraft concept - Airframe study and design

Estudiants que han llegit aquest projecte:

Director/a: MELLIBOVSKY ELSTEIN, FERNANDO PABLO

Departament: FIS

Títol: eVTOL aircraft concept - Airframe study and design

Data inici oferta: 20-07-2022     Data finalització oferta: 20-03-2023


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 fuselage 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 advance in the dedign of the fuselage/airframe.
conceptual technology.
1) Analyse the efficiency of lower-body modifications aiming at a 25% contribution to total lift.
2) Study of landing gear solutions (fixed/deployable).
3) Analysis of openings (windows/gates).
4) Lift integration study of all external parts of the aircraft combined.
 
Overview (resum en anglès):

During the last decades, there has been an increasing demand for electric aviation from society due to the environmental and economic benefits it offers. New aircraft concepts have appeared such as the eVTOLs. These aircraft have the capabilities of the helicopter: Vertical Take-Off and Landing. For that reason, ONAerospace is designing a new aircraft concept, called ONA Jet. This concept could cover search and rescue, and medical and commercial operations. The ONA Jet is powered by electrical motors and has VTOL capabilities. However, when cruising it uses conventional wings to generate lift.
This project studies and designs the airframe, specifically the body shape.
The design objective of this work is to define a body shape solution that produces at least 25% of the total aircraft lift in cruise conditions with a stall speed of 35 m/s. This would lead to a decrease in the entire wing span, so reducing weight as well as enabling the aircraft to land in the current VTOL infrastructure.
The body of the aircraft has been designed following standard aircraft designing procedures, first defining the cabin measures and then, the shape itself.
The results validation and the parameter studies have been done with ANSYS, a CFD (Computational Fluid Dynamics) tool that allows the design validation in a real wind tunnels or flight conditions. However, it has been validated just in 2D due to software version limitations.
Finally, a valid design has been presented, achieving the previously defined requirements. However, several design considerations and parameters will have to be reconsidered or refined in subsequent studies in order to maximize the total airplane¿s performance.

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