SOUND ABSORBING PANEL FOR A VEHICLE AND ITS METHOD OF MANUFACTURE

A substrate is provided for a sound absorbing panel, the substrate having an acoustic absorptive inner portion and an acoustic flow-resistive outer portion having a first layer on a first side of the inner portion and a second layer on a second side of the inner portion. The inner portion may includ...

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Bibliographische Detailangaben
Hauptverfasser:	ERICKSON, BRIAN, L, VEEN, GERALD, RAYMOND, SPRINGER, ROB, ERIC
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR BUILDING CEILINGS FIXED CONSTRUCTIONS FLOORS GENERAL BUILDING CONSTRUCTIONS INSULATION OR OTHER PROTECTION OF BUILDINGS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS ROOFS SOUND-PRODUCING DEVICES TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR WALLS, e.g. PARTITIONS
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Beschreibung
Zusammenfassung:	A substrate is provided for a sound absorbing panel, the substrate having an acoustic absorptive inner portion and an acoustic flow-resistive outer portion having a first layer on a first side of the inner portion and a second layer on a second side of the inner portion. The inner portion may include a foam material or a fibrous material and each outer portion may include a structural material. The inner portion, also referred to as a core portion, may include at least one of a sound absorbing material, an airbag device and an impact cushion material. L'invention concerne un substrat pour panneau d'isolation phonique, qui comprend une partie intérieure absorbant les sons, et une partie extérieure résistante aux fuites acoustiques présentant une première couche sur un premier côté de la partie intérieure et une seconde couche sur un second côté de la partie intérieure. La partie intérieure peut comprendre un matériau mousse ou un matériau fibreux, et chaque partie extérieure peut comprendre un matériau structural. La partie intérieure, également apelée partie centrale, peut comprendre au moins un matériau d'isolation phonique, un dispositif d'airbag et un matériau amortisseur de chocs.