Trias - tyre road interaction acoustic simulation model

摘要

The reduction of tyre-road noise will be greatly enhanced by a well-developed understanding and description of the mechanical interaction in the tyre-road contact patch and of the sound emission that arises from this interaction. For this purpose the mathematical simualtion model TRIAS has been developed, which is currently subject to a validation study. As part of TRIAS the module RODAS (ROad Design Acoustical Simulation) has been developed, which predicts the acoustical characteristics of the road surface from the basic material proeprties, like chipping size and porosity. This module may also be applied separately. The validation of this module has shown that the acoustical characteristics of road surfaces may be predicted with acceptable accuracy and that simulated data can be used as sufficiently reliable input for the TRIAS model.