SOUND-ATTENUATION BY MULTIPLE BARRIERS

被引：3

作者：

YUZAWA, M

SONE, T

NIMURA, T

机构：

[1] Tohoku Institute of Technology, Sendai

[2] Tohoku University, Sendai

来源：

APPLIED ACOUSTICS | 1979年 / 12卷 / 06期

关键词：

D O I：

10.1016/0003-682X(79)90003-3

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A method (tentatively called 'the method of equivalent sound source') of predicting the sound attenuation achieved by multiple barriers with knife edges and/or right-angled wedges is proposed. This paper shows that the sound pressure level in the shadow region behind the multiple barriers can be obtained by successively setting imaginary sound sources for respective edges and/or wedges. The locations of the imaginary sound sources are determined by means of the traditional solution for sound attenuation by a single edge. The calculated results for several kinds of small-scale model, obtained by 'the method of equivalent sound source', are compared with experimental results. © 1979.

引用

页码：447 / 458

页数：12

共 7 条

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[2]

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[3]

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[4]

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[5]

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[6]

Yuzawa, Sone, Nimura, A method of estimating the sound attenuation by barriers by means of the calculating charts, J. Acoust. Soc. Japan, 33, (1977)

[7]

Fujiwara, Ando, Maekawa, Attenuation of a spherical sound wave diffracted by a thick plate, Acustica, 28, (1973)

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