AIJ Journal of Technology and Design
Online ISSN : 1881-8188
Print ISSN : 1341-9463
ISSN-L : 1341-9463
A STUDY ON MEASUREMENT METHOD OF FLOOR IMPACT SOUND ISOLATION PERFORMANCE OF HOUSING SECURE LAW : Part1 Impedance in impact time
Takeshi ISHIMARU, Fumihiro TAKAKURA, Masanao OWAKI, Takefumi ZAIMA, Yasuhiro YAMASHITA
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Keywords: Housing secure law, Floor impact sound by heavy source, Equivalent thickness, Impedance
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2002 Volume 8 Issue 16 Pages 165-168

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Abstract
In this paper, the measurement method of the relation to the quality housing securing law was examined. First, impedance of impact time was examined by impulse hammer and bang machine. The result of bang machine was compared with that of the impulse hammer. The result of the impulse hammer corresponded to the calculation value. Impedance in impact time by a bang machine differs about 2-4dB against the calculation value. It was shown that the natural frequency influenced the impedance of the impact time.
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© 2002 Architectural Institute of Japan
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