High Resolution Imaging of Noise from Novel Integrated Propeller Systems

Doctoral thesis (2019)

Authors

A.M.N. Malgoezar Aircraft Noise and Climate Effects - Aerospace Engineering
Research Group
Aircraft Noise and Climate Effects (Aerospace Engineering) (TU Delft)
Copyright: © 2019 A.M.N. Malgoezar
DOI
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https://doi.org/10.4233/uuid:93e4b064-c2fe-413f-b70b-9442a5a379ba
Aeroacoustics Array design Acoustic beamforming Numerical optimization Phased microphone array
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Published Date

2019

Language

English

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Faculty

Aerospace Engineering

Department

Control & Operations

Research Group

Aircraft Noise and Climate Effects

Abstract

Humans localize sound incessantly using the ears and it proves to be important of
our awareness. It can also be a cause of annoyance to the community whenever
sound is in the form of noise. Due to increase of wealth, industry, technology and
corresponding globalization there is a large increase of noise. Especially with the
increase of air traffic, noise is increased around the vicinities of airports. While
environmental pollution is important and needs to be reduced, the accompanying
noise is also of great importance. For example, while propeller-driven aircraft can
be more efficient energy-wise, it also results in more noise compared to a traditional turbofan. For potential noise reduction it is necessary to first obtain both correct information about the origin and strength of these noise sources.