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Engineering Brief

Theoretical and Experimental Study of an Acoustic Monopole Source

Authors: Argenta, Pierluigi A.; Martellotta, Francesco; Soria, Leonardo

AES Convention 144 · Paper 442 · May 2018

Abstract

As it is well known, the acoustic monopole source plays a fundamental role in the fields of theoretical and experimental acoustics. In this work a sound source that well approximates the dynamic response of a theoretical monopole is designed and the parameters affecting its operational behavior are highlighted and optimized in terms of sound power and range of reproducible frequencies. We develop a hybrid lumped-parameter-finite-element model for describing the source operation. The model is first experimentally tested to validate its predictive effectiveness. Then, we perform a non-dimensional parametric optimization of the source directionality, obtaining relationships with which general design guidelines are identified, to minimize the far field directionality and, thus, achieve a quite omnidirectional behavior.

Details

Published in
AES Convention 144
AES Convention
144
Paper number
442
Publication date
May 6, 2018
Session subject
e-Brief Posters—2
Affiliation
Politecnico di Bari, Bari, Italy (See document for exact affiliation information.)
Type
Engineering Brief