A comparison of the 2d ring and 3d orthotropic plate for modelling of radial tire vibrations
PERISSE ; HAMET
Type de document
COMMUNICATION AVEC ACTES INTERNATIONAL (ACTI)
Langue
anglais
Auteur
PERISSE ; HAMET
Résumé / Abstract
Among all acoustical sources of tire-road noise, the radiated sound from radial tire vibrations is of major importance in low and medium frequency ranges. Different mathematical models for tire vibrations modelling have been developed over thirty years: ring on an elastic foundation (2d) [1,2,3], orthotropic plate under tension on an elastic foundation (3d) [4,5], thin shell (3d) coupled with finite element method - fem - or purely fem model (3d) [7]. Whereas fem is a powerful means to model the complexity of tire dynamic behaviour or road-contact interactions, analytical approaches like ring and plate models are still of interest to understand physical phenomena and structure-borne sound [6]. The paper focuses on comparing ring and plate models for evaluating the radial dynamic response of a tire excited by a point force. The tire is considered at rest and unloaded. Theoretical and experimental comparisons are presented for each model. General physical insights are finally discussed for each approach.
