Theoretical analysis of conversion process of tire tread vibration to road noise exciting force
Tire tread vibration due to unevenness of the road surface, through some process, acts on the axle, which is the excitation source of solid-borne components of road noise. However, this conversion process has not been fully understood until now. Therefore, the author decomposed it into
two parts and analyzed it theoretically. They are: a) variations in cavity pressure, b) variations in sidewall contact angle with the wheel rim. As a result, it is now possible to formulate the relationship between tread displacement/velocity and the force acting on the axle. This study enabled
us to calculate the effect of these two processes on a typical tire shape, size and pressure.
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Document Type: Research Article
Affiliations: Ishihama-giken Consulting
Publication date: 30 November 2023
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