<script type="text/javascript">
<!--
document.write('<div id="oa_widget"></div>');
document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=undefined&type=result"></script>');
-->
</script>

COPY SCRIPT

For further information contact us at helpdesk@openaire.eu

Energy predictions of turbulent boundary layer induced mid-high frequency structural vibrations

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Feb 2009 France Publisher:Elsevier BVJournal:Journal of Wind Engineering and Industrial Aerodynamics, volume 97, pages 63-76 (issn: 0167-6105,

Authors: Ichchou, Mohamed; Bareille, Olivier; Jacques, Yves;

doi: 10.1016/j.jweia.2008.11.001

Energy predictions of turbulent boundary layer induced mid-high frequency structural vibrations

- Summary
- Subjects
- Metrics

Abstract

This paper addresses the study of vibrations induced by turbulent boundary layers (TBLs) flowing over plate-like structures. The aim is here to propose a predictive method in order to evaluate the vibroacoustical behaviour of a plate excited by TBL pressure fluctuations. The ultimate goal is to develop tools for predicting internal cabin noise in an aircraft during flight. Hence TBL is considered. Different TBL models are discussed and compared. A prediction method well suited for mid-high frequencies is also presented. The method called simplified energy method (SEM) is based on local energetic considerations and extends the well-known statistical energy analysis (SEA). Two different SEM formulations are presented. The first one is of heat conduction type, whilst the second is radiative. The TBL source model was integrated in the local energy proposed formulations. When applied to a simple Kirchhoff-Love simply supported plate, SEM allows prediction of averaged energy quantities. Comparisons are drawn between heat and radiative formulations. Good concordance was observed between energy results and pure analytical calculations of the structural response under TBL excitation over a wide frequency range.

Country

France

Related Organizations

Keywords

Energy predictions, Predictive methods, [PHYS.MECA.VIBR] Physics [physics]/Mechanics [physics]/Vibrations [physics.class-ph], Aircraft, Plate-like structures, MECA:VIBR] Engineering Sciences/Mechanics/Vibrations [[SPI], MECA:VIBR] Physique/Mécanique/Vibrations [[PHYS], Turbulent flow, ACOU] Sciences de l'ingénieur/Acoustique [[SPI], Energy methods, Local energies, Simply supported, Structural vibrations, Structural response, Pressure fluctuations, [PHYS.MECA.VIBR]Physics [physics]/Mechanics [physics]/Vibrations [physics.class-ph], [ SPI.ACOU ] Engineering Sciences [physics]/Acoustics [physics.class-ph], [PHYS.MECA.VIBR] Physics/Mechanics/Vibrations, Cabin noise, Energy management, [PHYS.MECA.ACOU]Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph], [ PHYS.MECA.VIBR ] Physics [physics]/Mechanics [physics]/Vibrations [physics.class-ph], Sem, MECA:VIBR] Sciences de l'ingénieur/Mécanique/Vibrations [[SPI], Energy flow methods, Boundary layers, [SPI.MECA.VIBR] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph], [PHYS.MECA.ACOU] Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph], Mid-high frequencies, Wide frequency ranges, Analytical calculations, Kirchhoff, Prediction methods, [PHYS.MECA.ACOU] Physics/Mechanics/Acoustics, Aerodynamics, Frequency response, ACOU] Engineering Sciences/Acoustics [[SPI], [SPI.MECA.VIBR] Engineering Sciences/Mechanics/Vibrations, Source models, [ PHYS.MECA.ACOU ] Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph], [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph], Boundary layer flow, [SPI.ACOU] Engineering Sciences [physics]/Acoustics [physics.class-ph], MECA:VIBR] Physics/Mechanics/Vibrations [[PHYS], MECA:ACOU] Physics/Mechanics/Acoustics [[PHYS], Cabins (aircraft), MECA:ACOU] Physique/Mécanique/Acoustique [[PHYS], Bending vibration, [SPI.MECA.VIBR]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph], Plates (structural components), [ SPI.MECA.VIBR ] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph], Turbulence, Statistical energy analysis, Turbulent boundary layer, Structural dynamics, [SPI.ACOU] Engineering Sciences/Acoustics

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	2
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Average
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Average
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Average