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Experimental Visualization of Sound Pressure Level and Vibration Around a Soundproof Barrier

[+] Author Affiliations
Fumio Shimizu, Kazuhiro Tanaka

Kyushu Institute of Technology, Iizuka, Fukuoka, Japan

Koji Yamamoto

Tadano Co., Takamatsu, Kagawa, Japan

Hiroshi Shigefuji

TOTO LTD., Kitakyushu, Fukuoka, Japan

Paper No. AJK2011-08012, pp. 2147-2153; 7 pages
doi:10.1115/AJK2011-08012
From:
  • ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
  • ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D
  • Hamamatsu, Japan, July 24–29, 2011
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-4440-3
  • Copyright © 2011 by JSME

abstract

The noise and vibration control are the one of important issues. A soundproof barrier, which covers a sound source with sound absorbing materials, is very useful for the noise reduction. When large noise and high temperature heat emit from the sound source, we must also consider the heat radiation as well as the noise reduction. The purpose of the present study is to investigate the relationship between sound pressure level and vibration on a soundproof barrier around a sound source. The effect of heat radiation hole on the sound insulation performance of the soundproof barrier is also investigated. The sound pressure level and the vibration displacement were similarly distributed on the surface of the barrier. Therefore, the vibration of the barrier was strongly influenced to the sound pressure level of the transmitted sound.

Copyright © 2011 by JSME

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