Calcul de l'effet dièdre d'un pneumatique avec des sculptures
WANG ; DUHAMEL
Type de document
COMMUNICATION AVEC ACTES INTERNATIONAL (ACTI)
Langue
anglais
Auteur
WANG ; DUHAMEL
Résumé / Abstract
This paper proposes a method to compute the horn effect for tire with treads. The main feature of the method is thatit can easily get the sound pressure around the horn-like structure which has grooves with small cross sections onthe surfaces. It greatly saves computational costs and gives more physical informations. It is based on the boundaryelement method, and divides the computational domain of horn effect into an exterior subdomain of tire and severalinterior subdomains of junctions. It needs BEM system matrices and excitation vector, and also the relation ofpressure and velocity between the subdomains ends which can be obtained by analytical or numerical methods.This method is applied to study some simple examples for which analytical or numerical results are available.Good agreements between the proposed method and known results can check its efficiency and accuracy. Thenhorn effect of tires with treads is computed by this method, and comparisons with smooth tires are made.
