Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SOUND-BLOCKING SHEET AND SOUND-BLOCKING STRUCTURE
Provided is a sound insulation sheet that exhibits a high sound insulation effect beyond the mass law in multiple frequency bands.The sound insulation sheet is formed to have at least a sheet member, and a convex member A and a convex member B different in shape from each other.The convex members are arranged so as to obtain at least two peaks in a graph obtained by measuring a sound transmission loss of the sound insulation sheet, with the horizontal axis of a frequency X and the vertical axis of ΔTL (dB) obtained by the following formula (1), and to have at least two of these peaks with a height of 3 dB or more; ΔTL=TL1−TL2 wherein TL1 represents a sound transmission loss (dB) of the sound insulation sheet at the frequency X, and TL2 represents a sound transmission loss (dB) of a flat sheet having no concavo-convex structure and having the same mass as that of the sound insulation sheet and the same area as that of the sheet member at the frequency X.
SOUND-BLOCKING SHEET AND SOUND-BLOCKING STRUCTURE
Provided is a sound insulation sheet that exhibits a high sound insulation effect beyond the mass law in multiple frequency bands.The sound insulation sheet is formed to have at least a sheet member, and a convex member A and a convex member B different in shape from each other.The convex members are arranged so as to obtain at least two peaks in a graph obtained by measuring a sound transmission loss of the sound insulation sheet, with the horizontal axis of a frequency X and the vertical axis of ΔTL (dB) obtained by the following formula (1), and to have at least two of these peaks with a height of 3 dB or more; ΔTL=TL1−TL2 wherein TL1 represents a sound transmission loss (dB) of the sound insulation sheet at the frequency X, and TL2 represents a sound transmission loss (dB) of a flat sheet having no concavo-convex structure and having the same mass as that of the sound insulation sheet and the same area as that of the sheet member at the frequency X.
SOUND-BLOCKING SHEET AND SOUND-BLOCKING STRUCTURE
SCHALLBLOCKIERENDE FOLIE UND SCHALLBLOCKIERENDE STRUKTUR
FEUILLE DE BLOCAGE DE SON ET STRUCTURE DE BLOCAGE DE SON
NAKAYAMA MASANARI (Autor:in) / MATSUOKA TAKESHI (Autor:in) / KOSHITOUGE HARUKI (Autor:in)
01.01.2025
Patent
Elektronische Ressource
Englisch
IPC:
G10K
Tonerzeugungsvorrichtungen
,
SOUND-PRODUCING DEVICES
/
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
B60R
Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen
,
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
/
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2019