Patent ID: 11862136
Assignee: COMPONENT TECHNOLOGIES, L.L.C.
Field: Other consumer goods (Other fields)
Classification: CPC G  E | IPC E  G

Claim 16:
17. A method for assembling the acoustic metamaterial plates according to claim 11, characterized in that the assembled acoustic metamaterial structural units are rigidly connected, or the assembled acoustic metamaterial structural units are combined with wedge connector to form the acoustic metamaterial plate with a certain curvature. The perforated constraint and the frames are prepared to be the whole the acoustic metamaterial frame structure by the integral forming process. The membrane is covered the unit frame structure under the freely spreading conditions, and further they are rigidly contacted. Finally, the membrane is perforated. In this case, the sizes and the thickness of the membrane for every acoustic metamaterial structural unit are same. Preferably, the unit structure unit or the whole acoustic metamaterial plate is prepared by integral forming process such as milling, casting, stamping, laser cutting or the 3D printing process. Preferably, the prefabrication of the perforated constraint and frame are prepared by the process of milling, casting, stamping, laser cutting or the 3D printing. Preferably, the rigid connection is gluing connection, hot weld connection or mechanical rivet connection.