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Study of the Tyre-Road Noise Interaction on Brazilian Roads by the CPX Method
Technical Paper
2014-36-0805
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
There is a great lack of Brazilian laboratory and field measurements on of noise generated by the interaction between tyre and road surface. In this study the tyre-road noise interaction on Brazilian roads through the CPX method with a wheeled trailer with enclosure that simulates a light vehicle of 700 kg equipped with two tyres and two microphones for each tyre is evaluated. Two types of sections of the road with different surfaces characteristics were evaluated with the trailer at speed of 80 km/h. The first section road is comprised of a rubberized asphalt mixture about 30 months of age and the other surface is composed of an ordinary dense asphalt mixes with approximately 10 years of age. The noise generated by the tyre-road showed that the sound pressure levels are concentrated between 630 and 1600 Hz and the differences in the sound levels are related with the characteristics and ages of the road surface.
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Citation
Vergara, E., Gerges, S., Trichês, G., and Knabben, R., "Study of the Tyre-Road Noise Interaction on Brazilian Roads by the CPX Method," SAE Technical Paper 2014-36-0805, 2014, https://doi.org/10.4271/2014-36-0805.Also In
References
- SANDBERG , U. ; EJSMONT J. Tyre/Road Noise Reference Book Informex Kisa, Sweden 2002
- ISO 11819-2: Acoustics - Method for Measuring the Influence of Road Surfaces on traffic noise - Part 2: The Close Proximity Method International Organisation for Standardisation (ISO) Geneve, Switzerland 2010
- ABNT NBR 10151 Acoustics - Evaluation of noise in inhabited areas aiming the comfort of the community - procedure 2000
- ISO 10844 Specification of test tracks for the purpose of measuring noise emitted by road vehicles Geneva, Switzerland 1994
- Knabben , R. M. , Trichês , G. , Villena , J. , Gerges , S. , Vergara , E. F. Tyre-Road Noise and Sound Absorption of Different Road Types SAE Brasil International Noise and Vibration Colloquium 2012 Florianópolis, Brazil 25 27 November 2012