Towards a reduction of noise emission of powered two-wheels - Part 1
LELONG ; CHATAGNON ; CLERC ; JAMIN ; SEIGNER ; THIVANT
Type de document
COMMUNICATION AVEC ACTES INTERNATIONAL (ACTI)
Langue
anglais
Auteur
LELONG ; CHATAGNON ; CLERC ; JAMIN ; SEIGNER ; THIVANT
Résumé / Abstract
Transportation in urban areas is often synonymous of traffic congestion. In the last decade, this situation led users to give up passenger cars and incited them to adopt powered two-wheelers (PTW), better adapted to the traffic hazards. However, the question of the noise emitted by PTW remains a concern for the population. In France, these vehicles are quoted in second position in the opinion surveys relative to the transportation noise. The main objective of the French research project Ascoot (Acoustique des scooters et des motocycles) is to propose solutions aiming to reduce the noise emitted by the most represented PTW in the current traffic. This paper summarizes the results obtained on the acoustical investigation of a panel of ten PTW (including an electric powered scooter). Global and third-octave noise analysis has been performed, relying on the classical Controlled Pass-by procedure, and on a determination of the directivity characteristics. Pass-bys at constant speed, with acceleration and deceleration have been considered, and the influence of mechanical parameters, as the engine capacity, is also analyzed. The noise emission of PTW has been finally compared with those of other means of transportation usually met in urban zones (light vehicles, medium heavy vehicles, buses, trams).
