METHOD FOR CREATING ALVEOLAR CORES HAVING OPEN INNER CONICAL SHAPES

A method for manufacturing a sound attenuating panel uses an alveolar-core structure including a first edge and a second edge separated by alveolar cells, the alveolar cells including walls extending from the first and second edges and defining a primary conduit for the circulation of a sound wave t...

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Bibliographische Detailangaben
Hauptverfasser:	DESJOYEAUX, Bertrand, PREAU, Mathieu, MOREAU, Laurent, VERSAEVEL, Marc
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR BUILDING CEILINGS FIXED CONSTRUCTIONS FLOORS GENERAL BUILDING CONSTRUCTIONS INSULATION OR OTHER PROTECTION OF BUILDINGS METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE ROOFS SOUND-PRODUCING DEVICES TRANSPORTING WALLS, e.g. PARTITIONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A method for manufacturing a sound attenuating panel uses an alveolar-core structure including a first edge and a second edge separated by alveolar cells, the alveolar cells including walls extending from the first and second edges and defining a primary conduit for the circulation of a sound wave that is to be attenuated. The method includes covering the first edge or the second edge of the alveolar-core structure with a compartmentation wall; deforming the compartmentation wall to define at least one secondary conduit for the circulation of a sound wave that is to be attenuated, the secondary conduit extending at least partially within said primary conduit; and creating an opening in the compartmentation wall to permit communication between the primary and secondary conduits.