抄録
This paper studied the feasibility of a quieting wheel cover with resonators by simulations and speaker experiments. BEM simulation considering resonators as secondary sources induced by primary sources predicted that the quieting wheel cover with resonators could reduce radiated tire noise to the side direction by about 8dB at 1kHz. But the speaker experiments showed that the noise reducing frequency range of resonators was as small as predicted and the noise reducing performance did not exceed that of the quieting wheel cover with sound absorbing materials. The noise reducing mechanism of resonators was studied to widen the noise reducing frequency range.
