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

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 journal › Conference article › peer-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 language	English
Pages (from-to)	299-304
Number of pages	6
Journal	Proceedings of Forum Acusticum
Publication status	Published - Dec 1 2011
Event	6th Forum Acusticum 2011 - Aalborg, Denmark Duration: Jun 27 2011 → Jul 1 2011

All Science Journal Classification (ASJC) codes

Acoustics and Ultrasonics

Cite this

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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.",

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AU - Sonogi, Akihiro

AU - Sato, Shin Ya

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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.

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JO - Proceedings of Forum Acusticum

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T2 - 6th Forum Acusticum 2011

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ER -

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

Abstract

All Science Journal Classification (ASJC) codes

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