A device (1) for reducing a rolling noise of a vehicle (3) having at least one tire (2), the tire (2) rolling on a roadway on a tire contact patch (4), wherein the device (1) comprises at least one sound absorption element (5) attached to the vehicle (3) in front of, behind and/or laterally of the tire contact patch (4) in the direction of travel (F) of the vehicle (3) and having at least one resonance frequency and a curved first absorber membrane (6) facing the tire contact patch (4), wherein essentially the entire first absorber membrane (6) is oriented normally to a direction of sound propagation (S) emanating from the tire contact patch (4), and the sound absorption element (5) is located at a distance from the tire contact patch (4) which corresponds to a multiple of half a wavelength (λ) assigned to the resonance frequency.
DEVICE FOR REDUCING TYRE NOISE
2021-10-07
Patent
Elektronische Ressource
Englisch