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Convention Paper

Geometrical Stiffness of Loudspeaker Cones

Authors: Larsen, Peter

AES Convention 116 · Paper 6095 · May 2004

Abstract

The frequency response of a loudspeaker cone is affected by two main factors: Material Parameters and Geometry. While the first may be generally understood, the inherent stiffness due to the basic geometry is the subject of this study.

Using Finite Element Modelling (FEM), first a flat cone disk is analysed followed by shallow and deep conical cones plus curved concave and convex cones. The results are extended to include softer and high damping cone materials.
The cone break-up behaviour and frequency response is shown to be strongly dependant on the Geometrical Stiffness of the Cone, which should therefore be considered a very important design parameter.

Details

Published in
AES Convention 116
AES Convention
116
Paper number
6095
Publication date
May 6, 2004
Session subject
Loudspeakers
Affiliation
LOUDSOFT, Horsholm, Denmark (See document for exact affiliation information.)
Type
Convention Paper