Patent ID: 8684133

Claim:
An acoustically damped component comprising: a flat basic body ( 3 ) having a surface; a rib structure ( 5 ) having ribs ( 6 , 6 â€², 6 â€³, 6 â€²â€³) provided at least in regions on at least one side of said surface of said flat basic body ( 3 ); a plurality of chambers ( 7 , 7 â€², 7 â€³) formed by said ribs ( 6 , 6 â€², 6 â€³, 6 â€²â€³) of said rib structure; said chambers ( 7 , 7 â€², 7 â€³) arranged irregularly on at least one region of said component and defining a plurality of part areas ( 8 , 8 â€²); said component constructed so as to have a resonant frequency of from 200 to 1000 Hz; said chambers ( 7 , 7 â€², 7 â€³) configured irregularly such that, at least in regions, said chambers ( 7 , 7 â€², 7 â€³) of said component have one of different dimensioning and geometry in comparison with adjoining chambers such that, starting from said chambers emitted airborne sound is one of reduced and eradicated mutually in the near field; and wherein a response to a transient excitation of at least two of said part areas ( 8 , 8 â€²) of said chambers ( 7 , 7 â€², 7 â€³) provided on said surface of said flat basic body have a correlation of from 0.50 to 0.85.