Sound-damping profiled member

Strip ( 3 ) to be inserted between two elements ( 1, 2 ) in order to cause acoustic attenuation of the noise propagating through at least one of the elements, the.strip ( 3 ) being made of at least one plastic-based damping material i, characterized in that the strip ( 3 ) has an equivalent real sti...

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Bibliographische Detailangaben
Hauptverfasser:	MOTTELET BEATRICE, REHFELD MARC, LEROY DIMITRI, DRUJON FREDERIC
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR 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 REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES SOUND-PRODUCING DEVICES TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES
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Beschreibung
Zusammenfassung:	Strip ( 3 ) to be inserted between two elements ( 1, 2 ) in order to cause acoustic attenuation of the noise propagating through at least one of the elements, the.strip ( 3 ) being made of at least one plastic-based damping material i, characterized in that the strip ( 3 ) has an equivalent real stiffness per unit length K'eq equal to at least 25 MPa and an equivalent loss factor tan deltaeq equal to at least 0.25.