Shielding plate

摘要

A shielding plate (1) which is exposed to the excitation of vibrations and is made from an essentially flat, thin-walled material has through holes (2; 12; 22) in the form of cutouts covered at a distance. The through holes (2; 12; 22) are numerous, relatively small and distributed uniformly over the entire surface of the shielding plate (1). The number and size of the through holes (2; 12; 22) and the ratio of the surfaces of the through holes to the total surface of the shielding plate (1) are tuned to one another so as to ensure an acoustic short circuit between its two sides over its entire area. <IMAGE>