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METHOD FOR MANUFACTURING AN ACOUSTIC ABSORPTION STRUCTURE INCLUDING A SKIN FORMING A PLURALITY OF ENCLOSURES, ACOUSTIC ABSORPTION STRUCTURE OBTAINED ACCORDING TO SAID METHOD AND AIRCRAFT COMPRISING SAID ACOUSTIC ABSORPTION STRUCTURE
METHOD FOR MANUFACTURING AN ACOUSTIC ABSORPTION STRUCTURE INCLUDING A SKIN FORMING A PLURALITY OF ENCLOSURES, ACOUSTIC ABSORPTION STRUCTURE OBTAINED ACCORDING TO SAID METHOD AND AIRCRAFT COMPRISING SAID ACOUSTIC ABSORPTION STRUCTURE
The subject of the invention is a method for producing an acoustic absorption structure comprising an acoustically resistive structure, an alveolar structure (54), a reflective layer as well as a plurality of acoustic elements positioned in the alveolar structure (54). ), against the acoustically resistive structure, the method comprising: - a step of forming a skin (68) forming enclosures of the acoustic elements by attaching a resin to a mold (74) having a base (76) on which are positioned protruding shapes (78) shaped like the cavities delimited by the enclosures of the acoustic elements, - a step of docking the mold (74) supporting the resin and the honeycomb structure (54), the resin being interposed between the mold ( 74) and the alveolar structure (54), - a step of polymerization of the resin in order to simultaneously obtain hardening of the skin (68) as well as the junction between the skin (68) and the alveolar structure ( 54), and - a step of placing the acoustically resistive structure and the reflective layer.
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