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.
Authors:
Fryer, Peter A.; Henwood, David; Moore, Jon; Geaves, Gary
Affiliations:
B&W Loudspeakers Ltd, Steyning, W.Sussex, UK ; University of Brighton, Brighton, E.Sussex, UK(See document for exact affiliation information.)
AES Convention:
110 (May 2001)
Paper Number:
5320
Publication Date:
May 1, 2001
Subject:
Loudspeakers
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.