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Convention Paper

Verification of an approach for transient strucural simulation of loudspeakers incorporating damping

Authors: Fryer, Peter A.; Henwood, David; Moore, Jon; Geaves, Gary

AES Convention 110 · Paper 5320 · May 2001

Abstract

An approach for simulating transient structural wave propagation in loudspeakers is described. The Finite Element Method is used for spatial discretisation and the Laplace transform for the time solution. The accuracy of the spatial discretisation is verified by simulating the acoustic frequency response of a loudspeaker and comparing the results with measured data. A damping model is introduced that approximates standard hysteretic damping and yet can be used directly in both the time and frequency domains. The overall approach is verified by comparing laser measured and simulated results of the transient structural response of a loudspeaker to an impulse like excitation. Finally, structural energy is plotted and discussed.

Details

Published in
AES Convention 110
AES Convention
110
Paper number
5320
Publication date
May 6, 2001
Session subject
Loudspeakers
Affiliation
B&W Loudspeakers Ltd, Steyning, W.Sussex, UK ; University of Brighton, Brighton, E.Sussex, UK (See document for exact affiliation information.)
Type
Convention Paper