| 摘要 |
Acoustically damped component for a vehicle, an engine, a transmission or a vehicle trim panel, includes a flat basic body provided on at least one side with a rib structure. The ribs of the rib structure form chambers which are arranged irregularly on at least one region of the component, which has a resonant frequency of from 200 to 1000 Hz. The chambers are configured irregularly in such a way that chambers of the component have different dimensioning and/or geometry in comparison with adjoining chambers, such that emitted airborne sound can be reduced and/or eradicated. A response to a transient excitation of at least two part areas of that surface of the component which is provided with the chambers having a correlation of from 0.5 to 0.85, preferably of from 0.6 to 0.7.
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