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Convention Paper

Acoustic Radiation of a Horn Loudspeaker by the Finite Element Method: Acoustic Characteristics of a Horn Loudspeaker with an Elastic Diaphragm

Authors: Kyouno, Noboru; Sakai, Shinichi; Morita, Shigeru; Yamabuchi, Tasuo; Kagawa, Yukio

AES Convention 69 · Paper 1756 · May 1981

Abstract

Acoustical characteristics of an axisymmetric horn loudspeaker with an elastic diaphragm are calculated by applying the Finite Element method to both the elastic diaphragm and the acoustic cavity of a horn mounted in a rigid infinite baffle. Acoustic radiation into the semi-infinite space is treated analytically in terms of the velocity potential that is given as the integral of the product of particle velocity and Green's function. Vibrational behavior of the diaphragm, driving point impedance, sound pressure distribution inside the horn, nearfield and fourfold acoustic radiation are presented for discussion. Experimental validity of the calculated characteristics is confirmed for the horn loudspeaker in fourfold sound pressure responses.

Details

Published in
AES Convention 69
AES Convention
69
Paper number
1756
Publication date
May 6, 1981
Affiliation
Mitsubishi Electric Corporation, Kamakura, Japan ; Toyama University, Toyama, Japan (See document for exact affiliation information.)
Type
Convention Paper