Time and wear make tyres louder, and quieter – study
The results of a study carried out by the Hong Kong Polytechnic University indicate that two changes through the life of a tyre – tread rubber hardness and tread wear – have a counterbalancing effect on each other. Wing-tat Hung, Yat-ken Lam and Chung-fai Ng, from the university’s Department of Civil and Environmental Engineering, and Randolph Chi-kin Leung from the Department of Mechanical Engineering, presented the findings of their study ‘the impacts of tyre hardness and tread depth on tyre/road noise’ at this week’s ICSV 20 congress in Thailand.