A Study of Acoustic Modes as a Source of Airframe Cavity Noise (Paperback) (ISBN-13: 9786139993611)

Under certain conditions, flow excited cavities can generate large pressure fluctuations, undesirable noise and significant structural loads. This project is an experimental study of noise emissions of a cylindrical Helmholtz resonance with a high H/D ratio. These harmful sounds are becoming more and more of a concern in societies because they impact the value of the residential areas surrounding the airports and the health of their inhabitants. This master thesis provide a better understanding of acoustic modes and Helmholtz resonance and how they react when confronted to attenuation technics such as a mesh, a foam and a honeycomb liner.

Author: Thibault Estoueigt, Gareth Bennett
ISBN-10: 613999361X
ISBN-13: 9786139993611
Publisher: LAP Lambert Academic Publishing
Language: English
Published: 07/15/2020
Pages: 96
Format: Paperback
Weight: 0.33lbs
Size: 9.00h x 6.00w x 0.23d