1. Repositório Institucional - Universidade Federal de Uberlândia
2. Faculdade de Engenharia Mecânica (FEMEC)
3. TCC - Engenharia Aeronáutica

Document type:	Trabalho de Conclusão de Curso
Access type:	Acesso Aberto
Title:	Aeroacoustic effect generated by the interaction rotor-airframe in an unmanned aerial vehicle's structure
Alternate title (s):	Efeito Aeroacústico gerado pela interação braço-rotor na estrutura de uma aeronave não tripulada. Efecto Aeroacústico generado por la interacción brazo-rotor en la estructura de una aeronave no tripulada.
Author:	Sanchez, Gino Rodrigo Lavagnino
First Advisor:	Almeida, Odenir de
First member of the Committee:	Viana Duarte, Marcus Antonio
Second member of the Committee:	Souza Morais, Tobias
Summary:	As the years go by, UAVs become more accessible, their operation properties improve and companies like Embraer get closer and closer to apply this type of vehicles for their operations and become their future product. These vehicles are evolving fast and the possibility of skies being filled with buzzing multi-copters has raised major concerns about security, health and control. For this reason, a bast number of researches in the area of Aeroacoustics, need to be done to solve major problems as mentioned before, including problems such noise pollution in our modern society. Knowing this, the present work is dedicated to study a possible source of noise in UAVs, known as the interaction rotor airframe, which causes a tonal noise given by pressure fluctuations between these components. As a possible solution and based on some studies, were projected and manufactured three different airframes; each one with a distinctive noise reduction concept. To test these concepts an experimental process was conducted using a high definition microphone, as a data acquisition system to measure the different pressure levels through a determinate period of time and through a code in Matlab  interpret and plot the signals as a A weighting signal to identify a possible noise reduction in each case in the human acoustic domain.
Keywords:	UAVS Aerocoustics noise pollution noise rotor-airframe
Area (s) of CNPq:	CNPQ::ENGENHARIAS::ENGENHARIA AEROESPACIAL::SISTEMAS AEROESPACIAIS::HOVERCRAFT
Language:	eng
Country:	Brasil
Publisher:	Universidade Federal de Uberlândia
Quote:	SANCHEZ, Gino Rodrigo Lavagnino . Aeroacoustic effect generated by the interaction rotor airframe in an unmanned aerial vehicle s structure. 107 f. Bachelor’s Thesis (Aeronautical Engineering) - Federal University of Uberlândia, Uberlândia Brazil. 2021
URI:	https://repositorio.ufu.br/handle/123456789/33999
Date of defense:	11-Nov-2021
Appears in Collections:	TCC - Engenharia Aeronáutica

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