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|Title: ||Prediction of vehicle pass-by noise|
|Authors: ||Braun, Michael E.|
Walsh, Stephen J.
Horner, Jane L.
|Issue Date: ||2011|
|Publisher: ||© Institute of Acoustics|
|Citation: ||BRAUN, M.E., WALSH, S.J. and HORNER, J.L., 2011. Prediction of vehicle pass-by noise. IN: Acoustics 2011 A New Decade - A New Reality. Rethinking acoustic practices for the austerity decade. Proceedings of the Institute of Acoustics, 33(4). 14-15 September, Glasgow, UK.|
|Abstract: ||Environmental noise exposure represents a burden to people and can result in cardiovascular disease, sleep disturbance or annoyance. Road traffic noise is a main contributor to environmental noise, thus, it is intended to be reduced and limited by legislation in order to increase health and life quality.
Vehicle pass-by noise tests are conducted according to the international standard ISO 362, which is suppose to reflect the noise emission of a vehicle in an urban traffic environment. It is discussed that nowadays urban traffic situation requires a change of the test procedure with accompanying reductions in pass-by noise limits. To achieve compliance with the pass-by noise test it is important that vehicle engineers have access to predictive tools at the design stage.
In this paper the initial development of a pass-by noise predictive tool is reported. To begin with, the vehicle pass-by noise test according to standard ISO 362 is summarized. Existing public domain literature is reviewed and an analysis of the characteristics of the four major noise sources (engine, intake and exhaust system, tyre/road system) contributing to pass-by noise is presented. An experimental set-up involving a point source loudspeaker on a moving trolley is described. Experimental measurements made within an anechoic chamber are used as validation data for the predicted pass-by noise.|
|Description: ||This is a conference paper presented at Acoustics 2011, 14-15 September, Glasgow, UK.|
|Version: ||Accepted for publication|
|Publisher Link: ||http://www.ioa.org.uk/|
|Appears in Collections:||Conference Papers and Contributions (Aeronautical and Automotive Engineering)|
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