AES E-Library

T. Kurosawa, and K. Okubo, "Acoustic Vibration Analysis of the Shell-Structured Distributed Mode Loudspeaker," Paper 10363, (2020 May.). doi: T. Kurosawa, and K. Okubo, "Acoustic Vibration Analysis of the Shell-Structured Distributed Mode Loudspeaker," Paper 10363, (2020 May.). doi:
Abstract: 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.

@article{kurosawa2020acoustic,
author={kurosawa, tasuku and okubo, kan},
journal={journal of the audio engineering society},
title={acoustic vibration analysis of the shell-structured distributed mode loudspeaker},
year={2020},
volume={},
number={},
pages={},
doi={},
month={may},} @article{kurosawa2020acoustic,
author={kurosawa, tasuku and okubo, kan},
journal={journal of the audio engineering society},
title={acoustic vibration analysis of the shell-structured distributed mode loudspeaker},
year={2020},
volume={},
number={},
pages={},
doi={},
month={may},
abstract={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.},}

TY - paper
TI - Acoustic Vibration Analysis of the Shell-Structured Distributed Mode Loudspeaker
SP - EP -
AU - Kurosawa, Tasuku
AU - Okubo, Kan
PY - 2020
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2020 TY - paper
TI - Acoustic Vibration Analysis of the Shell-Structured Distributed Mode Loudspeaker
SP - EP -
AU - Kurosawa, Tasuku
AU - Okubo, Kan
PY - 2020
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2020
AB - 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.