AES E-Library

AES E-Library

Acoustic Vibration Analysis of the Shell-Structured Distributed Mode Loudspeaker

Since the 1990s, Distributed Mode Loudspeaker (DML) has been widely researched and developed. The DML can provide wideband-characteristics and wide directivity in spite of a single diaphragm by using bending waves based vibration on the plate for acoustic radiation. This property is signi?cantly different from traditional loud-speakers. However, the DML has structural problems (e.g., maximum dimension becomes large), because it uses a two-dimensionally spread ?at plate. In this paper, the authors examine the characteristics of shell-structured loudspeakers whose diaphragm is formed with an arbitrary curvature, and compare them with conventional DML. Our results strongly suggest that the problems of the DML using a ?at plate can be improved by employing a shell structure for the diaphragm.

Authors:
Affiliation:
AES Convention: Paper Number:
Publication Date:
Subject:
Permalink: http://www.aes.org/e-lib/browse.cfm?elib=20780

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:

Start a discussion about this paper!


AES - Audio Engineering Society