The vibrational and acoustic behavior of direct-radiator loudspeaker cones was investigated. A finite-element model of the cone structure was coupled to analytical models of the acoustic environment and electromechanical voice coil, producing a model that required far less computer storage than wholly finite-element programs. Acoustic loading was simulated by a distributed load on the surface of the cone, the load being a function of the surface vibrational pattern. Thus acoustic loading was represented as interelement coupling in the structural finite-element model. The model was validated by comparison with other independent solutions of simple cases. Performance characteristics of a popular mass-produced loudspeaker were predicted with accuracy, and the flexibility of the model in providing design information was demonstrated.

Authors: Shepherd, Ian C.; Alfredson, R. J.
Affiliations: CSIRO, Division of Energy Technology, Highett, Victoria, Australia ; Dpartment of Mechanical Engineering, Monash University,Clayton, Victoria, Australia(See document for exact affiliation information.)
JAES Volume 33 Issue 5 pp. 322-329; May 1985
Publication Date: May 1, 1985 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=4448

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 and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes4)   /jrnl7888/1985/8046.pdf

Start a discussion about this paper!