A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Acoustic and vibrational energy absorption metamaterials
A substantially acoustically transparent planar, rigid frame divided into a plurality of individual, substantially two-dimensional cells is used to construct a sound absorption panel. A sheet of a flexible material is fixed to the rigid frame, and a plurality of platelets fixed to the sheet of flexible material such that each cell is provided with a respective platelet, thereby establishing a resonant frequency, establishing an increase in an absorption coefficient of the panel. The flexible material has a wrinkle or corrugation to permit distortion with reduced material elasticity. The wrinkle or corrugation permits the flexible material to distort beyond that afforded by a planar material of the same type, while retaining mechanical strength in supporting the plurality of platelets.
Acoustic and vibrational energy absorption metamaterials
A substantially acoustically transparent planar, rigid frame divided into a plurality of individual, substantially two-dimensional cells is used to construct a sound absorption panel. A sheet of a flexible material is fixed to the rigid frame, and a plurality of platelets fixed to the sheet of flexible material such that each cell is provided with a respective platelet, thereby establishing a resonant frequency, establishing an increase in an absorption coefficient of the panel. The flexible material has a wrinkle or corrugation to permit distortion with reduced material elasticity. The wrinkle or corrugation permits the flexible material to distort beyond that afforded by a planar material of the same type, while retaining mechanical strength in supporting the plurality of platelets.
Acoustic and vibrational energy absorption metamaterials
SHENG PING (author) / YANG ZHIYU (author) / YANG MIN (author) / SUN LIANG (author) / MA GUANCONG (author) / XIAO SONGWEN (author)
2016-12-13
Patent
Electronic Resource
English
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
/
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
| British Library Online Contents | 2008
Acoustic metamaterials for sound absorption and insulation in buildings
| Elsevier | 2024
Acoustic metamaterials for sound absorption and insulation in buildings
| Elsevier | 2024
Reprogrammable acoustic metamaterials for multiband energy harvesting
| Elsevier | 2023