Schalldämmpfende und schalldämmende Beschichtung eines zu Schwingungen neigenden Bauteils

摘要

The invention relates to a sound-absorbing and sound-deadening coating for an automobile body sheet (1) that vibrates. Said coating contains the combination of an intermediate layer (3) of an adhesive foam which supports a heavy layer (4); and an aluminium sandwich (2). While the sandwich (2) provides absorption through an extensive temperature range and the elastic-mass system consisting of the body sheet (1), the heavy layer (4) and the intermediate layer (3) produces a deadening effect (anti-drumming effect), the combination of the sandwich (2) and the adhesive foam provides additional absorption of the remaining bending vibrations.