On the road again
Question: How is car tyre road noise generated? How can it be minimised and
are the methods compatible with other desirable environmental effects? Are there
comparative lists for cars or tyres that can be consulted?
Answer: The generation of tyre noise is complex, involving several
mechanisms. One is vibration within the tyre itself—the tyre wall acts
like the diaphragm of a loudspeaker, exciting the surrounding air and creating
sound waves.
The initial vibration is caused by the forces acting on the contact patch
(the part of the tyre tread touching the road surface) as it…
