An objective of the present disclosure is to provide a method of manufacturing a sound absorbing board using a honeycomb and a sound absorbing board using a honeycomb manufactured using the same, in which when a sound absorbing board, which is manufactured by laminating glass fiber mats on both sides of a honeycomb structure that is light and has structural rigidity and foaming polyurethane sheets, is designed, a sound absorption coefficient is calculated using the diameter, the number, and the porosity of perforations, and the perforations having a diameter at which a sound absorption effect is obtained in a predetermined frequency band are formed in the polyurethane sheets, so that sound absorption performance in the predetermined frequency band can be further improved, and the weight may be reduced by making the thickness of the sound absorbing board small.
METHOD OF MANUFACTURING SOUND ABSORBING BOARD USING HONEYCOMB AND SOUND ABSORBING BOARD USING HONEYCOMB MANUFACTURED USING THE SAME
VERFAHREN ZUR HERSTELLUNG EINER SCHALLABSORBIERENDEN PLATTE UNTER VERWENDUNG VON WABEN UND SCHALLABSORBIERENDE PLATTE MIT DURCH DIESES VERFAHREN HERGESTELLTEN WABEN
PROCÉDÉ DE FABRICATION D'UN PANNEAU D'ABSORPTION SONORE UTILISANT DES NIDS D'ABEILLES ET PANNEAU D'ABSORPTION SONORE UTILISANT DES NIDS D'ABEILLES FABRIQUÉ SELON CE PROCÉDÉ
2021-09-29
Patent
Elektronische Ressource
Englisch
IPC: | 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 |
DESIGN METHOD FOR SOUND ABSORBING BOARD USING HONEYCOMB AND THE SOUND ABSORBING BOARD USING THE SAME
Europäisches Patentamt | 2020
|Sound-absorbing and heat-insulating honeycomb composite board and preparation method thereof
Europäisches Patentamt | 2023
|SOUND ABSORBING PATCH AND UNDERWATER SOUND ABSORBING PLATE USING SAME
Europäisches Patentamt | 2021
|Europäisches Patentamt | 2022
|SOUND ABSORBING DISK AND UNDERWATER SOUND ABSORBING PLATE USING SAME
Europäisches Patentamt | 2020
|