Modal analysis and sound field simulation of vibration panels in a free sound field and in a rectangular enclosure

Kazuhiko Kawahara, Akihiro Sonogi, Shin Ya Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Several types of implementation of panel loudspeakers, for example, distributed mode loudspeaker(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
Title of host publication130th Audio Engineering Society Convention 2011
Pages1193-1199
Number of pages7
Publication statusPublished - Dec 1 2011
Event130th Audio Engineering Society Convention 2011 - London, United Kingdom
Duration: May 13 2011May 16 2011

Publication series

Name130th Audio Engineering Society Convention 2011
Volume2

Other

Other130th Audio Engineering Society Convention 2011
CountryUnited Kingdom
CityLondon
Period5/13/115/16/11

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Acoustics and Ultrasonics

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