Monitoring road surfaces by close proximity noise of the tire/road interaction

被引：0

作者：

Paje, S.E. ^{[1
]}

Bueno, M. ^{[1
]}

Terán, F. ^{[1
]}

Viñuela, U. ^{[1
]}

机构：

[1] Laboratory of Acoustics Applied to Civil Engineering (LA2IC), Department of Applied Physics, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain

来源：

Journal of the Acoustical Society of America | 2007年 / 122卷 / 05期

关键词：

Applied acoustics is becoming an important field for civil infrastructure and environmental assessment; and road maintenance or rehabilitation strategies. In this research LA2 IC has developed a GPS-based measurement techniques and apparatus on a test vehicle; for monitoring the acoustical properties of different road pavement surfaces with a reference tire. A field test on PA-12 Spanish porous pavement found in Ciudad Real is developed. The test procedure; a modification based upon the close-proximity method (CPX); relies on the use of three standard microphones situated very close to the tire/road contact patch. This procedure allows the simultaneous measurement of the sound emission synchronized to a GPS receiver; which permits tracking of the position of the sound emission. Geo-referenced sound spectra for every 10 m during individual passes of the test vehicle are analyzed to determine the tire/road noise emissions from tire/PA-12 pavement interaction. Noise levels of around 102 dB(A); with a variability of approximately 0.6 dB(A); are found at a reference vehicle speed of 85 km/h. The frequency spectrum analysis over the test section shows noticeable differences for frequencies above 1 kHz; where the tire/road noise generation mechanisms are dominated by air pumping. © 2007 Acoustical Society of America;

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摘要：

Journal article (JA)

引用

页码：2636 / 2641