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Prediction of noise transmission through anisotropic multilayered aircraft fuselage, using finite element models including porous, elastic and fluid domains
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, MWL Numerical acoustics.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, MWL Numerical acoustics.ORCID iD: 0000-0003-1855-5437
2010 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Prediction of noise transmission through anisotropic multilayered aircraft fuselage, using finite element models including porous, elastic and fluid domains is carried out. A passenger aircraft carrier is modelled using a novel finite element formulation, utilising the rotationally symmetric geometry in order to greatly reduce the computational cost. The model consists of anisotropic porous, elastic and fluid domains. The axi-symmetry of the structure allows for the use of analytical functions describing the wave propagation in the circumferential spatial directions, and thus reducing the number of required finite elements considerably. It is found that a fairly limited number of modes are required to satisfactorily describe the sound fields.

Place, publisher, year, edition, pages
2010. 4605-4618 p.
National Category
Aerospace Engineering
Identifiers
URN: urn:nbn:se:kth:diva-82486ISI: 000302905400342Scopus ID: 2-s2.0-84951130467ISBN: 978-90-73802-87-2 (print)OAI: oai:DiVA.org:kth-82486DiVA: diva2:498280
Conference
International Conference on Noise and Vibration Engineering (ISMA)/Conference of USD Location: Leuven, BELGIUM Date: SEP 20-22, 2010
Note
QC 20120423Available from: 2012-02-11 Created: 2012-02-11 Last updated: 2012-08-22Bibliographically approved

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Göransson, Peter

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