METHOD FOR PRODUCING AN ACTIVE ACOUSTIC PANEL AND NOISE MITIGATION DEVICE USING SUCH ACTIVE ACOUSTIC PANEL

摘要

In order to produce a covering panel 1 made of an acoustically active and acoustically-cored composite sandwich, the cellular core is prepared by making indentations and by integrating into said impressions acoustic transducers 40. Notches in walls cells of the cellular core make it possible to produce cable trays 14 in which the supply cables 41 of the transducers are conveyed from an electrical connection point 2 of the panel 1.An active noise control device, in particular for a aircraft, uses such panels to replace conventional trim panels.