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Published in:
Low Wavenumber Models for Turbulent Boundary Layer Excitation of Structures Read chapter Read first chapter

2019 | OriginalPaper | Chapter

Fuselage Excitation During Cruise Flight Conditions: From Flight Test to Numerical Prediction

Authors : Alexander Klabes, Sören Callsen, Michaela Herr, Christina Appel

Published in: Flinovia—Flow Induced Noise and Vibration Issues and Aspects-II

Publisher: Springer International Publishing

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Abstract

In the context of aircraft cabin interior noise, the fuselage structural excitation by turbulent boundary layer (TBL) flows is an important noise source for aircraft manufacturers to deal with. During cruise flight, it is the dominant source of cabin noise for state-of-the-art aircraft. Aircraft at cruise conditions is flying at high Mach numbers, typically between Ma = 0.78...0.85, dependent on the type and mission of the aircraft. The vortices within the TBL cause pressure fluctuations on the fuselage and therefore, its structure receives energy and starts to vibrate. In this paper, methods to estimate the aerodynamic TBL sources by numerical and semi-empirical tools are presented. Besides, also the induced vibration of real aircraft structures is calculated with existing industrial tools. Furthermore, measured flight test data used for validation are presented and finally measurements and predictions are compared.

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Footnotes
1
Airbus Acoustic Engineer
 
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Metadata
Title
Fuselage Excitation During Cruise Flight Conditions: From Flight Test to Numerical Prediction
Authors
Alexander Klabes
Sören Callsen
Michaela Herr
Christina Appel
Copyright Year
2019
Book
Flinovia—Flow Induced Noise and Vibration Issues and Aspects-II

Print ISBN: 978-3-319-76779-6

Electronic ISBN: 978-3-319-76780-2

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-3-319-76780-2_19

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