ON THE ROLLING NOISE OF PASSENGER CAR TYRES

摘要

The acoustic and mechanical comfort in passenger cars is becoming more and more important.rnWhereas the number of cars is continuously increasing – which implicitly results in higherrnoverall noise emission – the respective legal regulations are becoming more stringent.rnHowever, abiding by these objective limits does not necessarily imply a better interior noisernperformance, since the subjective perception of acoustic signals varies depending on theirrnspectral composition. In this article, the main mechanisms of tyre/road noise are summarised,rnand the current EU regulations for road vehicles are presented, with special emphasis on C1rnclass tyres.