Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses an integral type multilayer micro-perforated metallic sound barrier. The barrier comprises supporting stand columns which are fixedly arranged along the two sides of a rail track at intervals, a group of metallic acoustic panel absorbers are fixedly hung on every two stand columns in vertical direction, each group of metallic acoustic panel absorbers are arranged into three layers, the three layers are hung on the corresponding stand columns respectively, intermediate frequency acoustic panel absorbers are arranged on the track traveling front face, high frequency acoustic panel absorbers are arranged on the track traveling back face, and low frequency acoustic panel absorbers are arranged in the middle. According to the barrier, multilayer micro-perforated acoustic panel absorber structures are adopted, the frequency division control over sound is achieved, no fiber sound absorption materials are added, the environmental pollution problem caused by flying-off of fiber and dust is completely eradicated, the acoustic panel absorbers of all layers absorb noise at different frequency, composite sound absorption chambers are formed, and the flexible connection among all parts enables the total sound barrier to become an acoustic product in real sense.
The invention discloses an integral type multilayer micro-perforated metallic sound barrier. The barrier comprises supporting stand columns which are fixedly arranged along the two sides of a rail track at intervals, a group of metallic acoustic panel absorbers are fixedly hung on every two stand columns in vertical direction, each group of metallic acoustic panel absorbers are arranged into three layers, the three layers are hung on the corresponding stand columns respectively, intermediate frequency acoustic panel absorbers are arranged on the track traveling front face, high frequency acoustic panel absorbers are arranged on the track traveling back face, and low frequency acoustic panel absorbers are arranged in the middle. According to the barrier, multilayer micro-perforated acoustic panel absorber structures are adopted, the frequency division control over sound is achieved, no fiber sound absorption materials are added, the environmental pollution problem caused by flying-off of fiber and dust is completely eradicated, the acoustic panel absorbers of all layers absorb noise at different frequency, composite sound absorption chambers are formed, and the flexible connection among all parts enables the total sound barrier to become an acoustic product in real sense.
Integral type multilayer micro-perforated metallic sound barrier
24.06.2015
Patent
Elektronische Ressource
Englisch
IPC:
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
20 YEARS OF MICRO-PERFORATED (TRANSPARENT) SOUND ABSORBERS
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