AES E-Library

Modelling Compression Drivers Using T-Matrices and Finite Element Analysis

Models for a commercial compression driver were developed using transmission line matrices and Finite Element Analysis using the commercial package ANSYS. The models were compared with measurements using plane wave tube loading, and discrepancies investigated. The electrical impedance was measured in-vacuo to obtain Thiele-Small parameters without acoustic loading. A resonance was investigated and found to be air leakage into the magnet cavity. The development of frequency dependent damping in the matrix and FEA models was necessary to improve the simulation accuracy.

Authors: Morgans, Rick; Murphy, David J.
Affiliations: CSIRO; Krix Loudspeakers(See document for exact affiliation information.)
AES Convention:119 (October 2005) Paper Number:6580 Import into BibTeX
Subject:Loudspeakers

Click to purchase paper 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 $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD 119Papers)   /119/6580.pdf

Start a discussion about this paper!