Pavement temperature influence on close proximity tire/road noise

[rahmatii]

Pavement temperature influence on close proximity tire/road noise
M. Bueno ⇑, J. Luong, U. Viñuela, F. Terán, S.E. Paje
Laboratory of Acoustics Applied to Civil Engineering (LA2IC), Universidad de Castilla-La Mancha (UCLM), Avda. Camilo José Cela s/n, 13071 Ciudad Real, Spain

 

a b s t r a c t
The aim of this work is to analyze the influence of the surface temperature on the acoustical behaviour of
a semidense asphalt pavement located in an urban area. The sound levels emitted by the interaction
between a reference tire and the asphalt pavement at different surface temperatures were measured with
the trailer Tiresonic Mk4 LA2IC-UCLM rolling at a speed of 50 km/h. The analysis of the results shows that
increasing pavement temperature leads to a reduction in the close proximity sound levels assessed at a
rate of 0.06 dB(A)/C. Moreover, spectral analysis confirms that both the mechanisms associated with
vibration and impacts and those related to the friction and adhesion between tire and pavement in the
contact patch could be affected by the variation of the surface temperature.
2011 Elsevier Ltd. All rights reserved.

Keywords:
Road traffic noise
Asphalt pavement
Temperature
Close proximity
Acoustic characterization

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