The University of Southampton
University of Southampton Institutional Repository

Statistical energy analysis, energy distribution models and system modes

Mace, B. (2003) Statistical energy analysis, energy distribution models and system modes Journal of Sound and Vibration, 264, (2), pp. 391-409. (doi:10.1016/S0022-460X(02)01201-4).

Record type: Article


Expressions for the energy influence coefficients of a built-up structure are found in terms of the modes of the whole structure. These coefficients relate the time and frequency average energies of the subsystems to the subsystem input powers. Rain-on-the-roof excitation over a frequency band is assumed. It is then seen that the system can be described by an SEA model only if a particular condition involving the mode shapes of the system is satisfied. Broadly, the condition holds if the mode shapes of the modes in the frequency band of excitation are, on average, typical enough of all the modes of the system in terms of the distribution of energy throughout the system. If this condition is satisfied then the system can be modelled using an "quasi-SEA" approach, irrespective of the level of damping or of the strength of coupling. However, the resulting model need not be of a proper SEA form, and in particular the indirect coupling loss factors may not be negligible.

Full text not available from this repository.

More information

Published date: 3 July 2003


Local EPrints ID: 10099
ISSN: 0022-460X
PURE UUID: 2b14729a-39b2-4b90-86aa-2b0c9d8bf976

Catalogue record

Date deposited: 11 Feb 2005
Last modified: 17 Jul 2017 17:08

Export record


Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.