VITRAGE FEUILLETE ACOUSTIQUE, INTERCALAIRE ACOUSTIQUE ET PROCEDE DE SELECTION DE L'INTERCALAIRE POUR UN AMORTISSEMENT ACOUSTIQUE OPTIMAL
Laminated glazing (2) comprising a viscoelastic plastic insert (3) comprising at least two damping films (30, 31) each having a loss factor tan δ greater than 0.6 and a shear modulus G′ less than 2×107 Pa over two temperature ranges tA et tB respectively, characterized in that the film which has, at...
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| creator | REHFELD MARC CHARLIER JULIEN BOURE JEAN PHILIPPE GAUDRY ELOI |
| description | Laminated glazing (2) comprising a viscoelastic plastic insert (3) comprising at least two damping films (30, 31) each having a loss factor tan δ greater than 0.6 and a shear modulus G′ less than 2×107 Pa over two temperature ranges tA et tB respectively, characterized in that the film which has, at a frequency of 200 Hz, the highest loss factor tan δ over a given temperature range included within the temperature range tA or tB, has an equivalent shear modulus G′eq less than the equivalent shear modulus or moduli of the other film or films, with G eq ′ = G ′ e tot e where G′ is the shear modulus of the material constituting the film, e is the thickness of the film and etot the total thickness of the insert. |
| format | Patent |
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| subjects | ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MINERAL OR SLAG WOOL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS SOUND-PRODUCING DEVICES SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR |
| title | VITRAGE FEUILLETE ACOUSTIQUE, INTERCALAIRE ACOUSTIQUE ET PROCEDE DE SELECTION DE L'INTERCALAIRE POUR UN AMORTISSEMENT ACOUSTIQUE OPTIMAL |
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