Finite element analysis (FEA) data is presented concerning the structural behavior of several common sound radiating surfaces and some not so common ones. Natural frequencies and modeshapes of various geometries of metal diaphragms are compared. Among these are a flat circular plate, a spherical segment, a hemispheroid and an ellipsoid. Additionally, data is presented which shows the effect of the surround as an edge constraint. Even though driving force and damping are not considered, there is still much to be learned from a diaphragm's normal modes.

Author: Bie, David
Affiliation: JBL Incorporated, Northridge, CA
AES Convention: 89 (September 1990) Paper Number: 2982
Publication Date: September 1, 1990 Import into BibTeX
Subject: Transducers: Loudspeakers—Theory and Practice
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=5711

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 aes11)   /pp8690/pp9009/3065.pdf

Start a discussion about this paper!