NON-LINEAR DYNAMIC ABSORBER AND USE THEREOF FOR ACOUSTIC INSULATION

摘要

The present invention relates to a construction element comprising a panel (11) made of a rigid material and at least one non-linear dynamic absorber (9) comprising: a leaf (1) with two end portions (2a) and an intermediate portion (2b) with a non-linear spring function; a mass (3) attached to the intermediate portion (2b) with a non-linear spring function of the leaf; an attachment means (4) making it possible to attach the two end portions (2a) of the leaf (1) to a solid mounting such that the intermediate portion (2b) with a non-linear spring function can oscillate around the position or positions of equilibrium thereof, the non-linear dynamic absorber (9) being rigidly attached to the panel (11) via the attachment means (4). The invention also relates to a partition containing such a construction element as well as to the use of such an absorber or construction element in order to reduce the acoustic transparency of a wall.