1976-02-01

A Vibrational Sound Mechanism of Lug Type Tread Designs 762025

The results of a carved study of basic design parameters using the on-board noise testing technique indicate that the fundamental noise mechanism of lug type tires is mechanical vibration in nature and exhibits a characteristic spring, mass damper response which is highly dependent on speed. Although the analysis of the data confirms the 40 log V relationship of speed, it indicates that it cannot be solely used to predict the change in sound level because of characteristic resonance sometimes present.

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