Modal analysis of vibration panels and sound field simulation generated by panels in a free sound field and in a rectangular room

Kazuhiko Kawahara, Akihiro Sonogi, Shin Ya Sato

Research output: Contribution to journalConference article

Abstract

Several types of implementation of panel loudspeakers, for example, distributed mode loud-speaker(DML), are proposed. The diaphragm of DML is thought as behave like a bending plate. The diaphragm of an electrostatic loudspeaker is thought move as a rigid plate. What is the difference of an acoustical sound field generation feature with each implementation ? In this paper, we used models of same dimensional rectangular panel. One is a rigid diaphragm. Another is a bending panel that has an actuator in the center of it. We made simulations of directivity and sound pressure distribution in a rectangular room. We could show less coherent SPL distribution in the case of bending panel.

Original languageEnglish
Pages (from-to)299-304
Number of pages6
JournalProceedings of Forum Acusticum
Publication statusPublished - Dec 1 2011
Event6th Forum Acusticum 2011 - Aalborg, Denmark
Duration: Jun 27 2011Jul 1 2011

Fingerprint

diaphragms
sound fields
rooms
vibration
loudspeakers
rectangular panels
simulation
directivity
sound pressure
pressure distribution
actuators
electrostatics
analysis
sound
distribution

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

Cite this

Modal analysis of vibration panels and sound field simulation generated by panels in a free sound field and in a rectangular room. / Kawahara, Kazuhiko; Sonogi, Akihiro; Sato, Shin Ya.

In: Proceedings of Forum Acusticum, 01.12.2011, p. 299-304.

Research output: Contribution to journalConference article

@article{81a547e818474ab984bbb899ad71dcce,
title = "Modal analysis of vibration panels and sound field simulation generated by panels in a free sound field and in a rectangular room",
abstract = "Several types of implementation of panel loudspeakers, for example, distributed mode loud-speaker(DML), are proposed. The diaphragm of DML is thought as behave like a bending plate. The diaphragm of an electrostatic loudspeaker is thought move as a rigid plate. What is the difference of an acoustical sound field generation feature with each implementation ? In this paper, we used models of same dimensional rectangular panel. One is a rigid diaphragm. Another is a bending panel that has an actuator in the center of it. We made simulations of directivity and sound pressure distribution in a rectangular room. We could show less coherent SPL distribution in the case of bending panel.",
author = "Kazuhiko Kawahara and Akihiro Sonogi and Sato, {Shin Ya}",
year = "2011",
month = "12",
day = "1",
language = "English",
pages = "299--304",
journal = "Proceedings of Forum Acusticum",
issn = "2221-3767",

}

TY - JOUR

T1 - Modal analysis of vibration panels and sound field simulation generated by panels in a free sound field and in a rectangular room

AU - Kawahara, Kazuhiko

AU - Sonogi, Akihiro

AU - Sato, Shin Ya

PY - 2011/12/1

Y1 - 2011/12/1

N2 - Several types of implementation of panel loudspeakers, for example, distributed mode loud-speaker(DML), are proposed. The diaphragm of DML is thought as behave like a bending plate. The diaphragm of an electrostatic loudspeaker is thought move as a rigid plate. What is the difference of an acoustical sound field generation feature with each implementation ? In this paper, we used models of same dimensional rectangular panel. One is a rigid diaphragm. Another is a bending panel that has an actuator in the center of it. We made simulations of directivity and sound pressure distribution in a rectangular room. We could show less coherent SPL distribution in the case of bending panel.

AB - Several types of implementation of panel loudspeakers, for example, distributed mode loud-speaker(DML), are proposed. The diaphragm of DML is thought as behave like a bending plate. The diaphragm of an electrostatic loudspeaker is thought move as a rigid plate. What is the difference of an acoustical sound field generation feature with each implementation ? In this paper, we used models of same dimensional rectangular panel. One is a rigid diaphragm. Another is a bending panel that has an actuator in the center of it. We made simulations of directivity and sound pressure distribution in a rectangular room. We could show less coherent SPL distribution in the case of bending panel.

UR - http://www.scopus.com/inward/record.url?scp=84866028017&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84866028017&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:84866028017

SP - 299

EP - 304

JO - Proceedings of Forum Acusticum

JF - Proceedings of Forum Acusticum

SN - 2221-3767

ER -