Dynamical energy analysis on mesh grids: a new tool for describing the vibro-acoustic response of complex mechanical structures

Chappell, DJ ORCID: 0000-0001-5819-0271, Löchel, D, Søndergaard, N and Tanner, G, 2014. Dynamical energy analysis on mesh grids: a new tool for describing the vibro-acoustic response of complex mechanical structures. Wave Motion, 51 (4), pp. 589-597. ISSN 0165-2125

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Abstract

We present a new approach for modelling noise and vibration in complex mechanical structures in the mid-to-high frequency regime. It is based on a dynamical energy analysis (DEA) formulation which extends standard techniques such as statistical energy analysis (SEA) towards non-diffusive wave fields. DEA takes into account the full directionality of the wave field and makes sub-structuring obsolete. It can thus be implemented on mesh grids commonly used, for example, in the finite element method (FEM). The resulting mesh based formulation of DEA can be implemented very efficiently using discrete flow mapping (DFM) as detailed in [1] and described here for applications in vibro-acoustics.

Item Type: Journal article
Publication Title: Wave Motion
Creators: Chappell, D.J., Löchel, D., Søndergaard, N. and Tanner, G.
Publisher: Elsevier
Date: 2014
Volume: 51
Number: 4
ISSN: 0165-2125
Identifiers:
NumberType
10.1016/j.wavemoti.2014.01.004DOI
Divisions: Schools > School of Science and Technology
Depositing User: EPrints Services
Date Added: 09 Oct 2015 10:25
Last Modified: 09 Jun 2017 13:29
URI: http://irep.ntu.ac.uk/id/eprint/12685

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