Electronic Journal Technical Acoustics ISSN 1819-2408

I. Grushetsky

On coupling loss factors and excitation factor

language: Russian

received 15.11.2011, published 20.12.2011

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ABSTRACT

Derivation of coupling loss factors (CLF), which used in Statistical Energy Analysis, is presented. CLF between sound field in compartment and enclosure, concerned with excitation of enclosure by sound field, is usually defined from CLF between enclosure and sound field, concerned with radiation of enclosure into compartment, via reciprocity relation. It is suggested to define CLF between sound field and enclosure directly, using excitation factor (contrary to radiation factor). The way to define excitation factor from experimental data is presented. Preferences of this approach are discussed.

Key words: noise, vibration, Statistical Energy Analysis, coupling loss factors

9 pages, no figures

Сitation: I. Grushetsky. On coupling loss factors and excitation factor. Electronic Journal “Technical Acoustics”, http://www.ejta.org, 2011, 14.

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Igor Grushetsky , PhD, Krylov Shipbuilding Research Institute (St. Petersburg, Russia). Scientific area - noise and vibration computing, measurements and control e-mail: editor(at)ejta.org