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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.
Author (s): Fryer, Peter A.;
Henwood, David;
Moore, Jon;
Geaves, Gary;
Affiliation:
B&W Loudspeakers Ltd, Steyning, W.Sussex, UK ; University of Brighton, Brighton, E.Sussex, UK
(See document for exact affiliation information.)
AES Convention: 110
Paper Number:5320
Publication Date:
2001-05-06
Session subject:
Loudspeakers
DOI:
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Fryer, Peter A.; Henwood, David; Moore, Jon; Geaves, Gary; 2001; Verification of an approach for transient strucural simulation of loudspeakers incorporating damping [PDF]; B&W Loudspeakers Ltd, Steyning, W.Sussex, UK ; University of Brighton, Brighton, E.Sussex, UK; Paper 5320; Available from: https://aes.org/publications/elibrary-page/?id=9905
Fryer, Peter A.; Henwood, David; Moore, Jon; Geaves, Gary; Verification of an approach for transient strucural simulation of loudspeakers incorporating damping [PDF]; B&W Loudspeakers Ltd, Steyning, W.Sussex, UK ; University of Brighton, Brighton, E.Sussex, UK; Paper 5320; 2001 Available: https://aes.org/publications/elibrary-page/?id=9905
@inproceedings{Fryer2001verification,
title={{Verification of an approach for transient strucural simulation of loudspeakers incorporating damping}},
author={Fryer, Peter A. and Henwood, David and Moore, Jon and Geaves, Gary},
year={2001},
month={may},
booktitle={Journal of the Audio Engineering Society},
publisher={Paper 5320; AES Convention 110; May 2001},
number={5320},
organization={AES},
}
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