AES E-Library

Disc and Ring Exciter Shape Effects on Flat-Panel Loudspeakers

Flat-panel loudspeaker exciters are moving coil motors with a coupling surface, often shaped like a ring or disc, that attaches to the surface of a plate. Simulations normally treat the exciter as acting like a point force, but in reality, the ring or disc shape can have a significant influence on the frequency response of the plate at middle and high frequencies. Equations to model the effects of disc and ring shapes are introduced, and simulations demonstrate that these exciter coupling shapes impose a low-pass filtering effect with sharp nodes in the frequency response of the vibrating surface, with rings having a lower cutoff frequency than discs. Comparisons between simulation and experimental data are provided.

 

Author (s):
Affiliation: (See document for exact affiliation information.)
Publication Date:
Permalink: https://aes2.org/publications/elibrary-page/?id=22795


(673KB)


Download Now

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member Join the AES. If you need to check your member status, login to the Member Portal.

Type:
E-Libary location:
16938
Choose your country of residence from this list:










Skip to content