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 articlepeer-review

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

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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