公开(公告)号：US20170116976A1

公开(公告)日：2017-04-27

申请号：US15402470

申请日：2017-01-10

Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Zhiyu YANG ,  Ping SHENG ,  Min YANG ,  Liang SUN ,  Guancong MA

IPC: G10K11/172

CPC classification number: G10K11/172 ,  B32B3/085 ,  B32B27/08 ,  G10K11/162 ,  G10K11/165 ,  G10K11/168

Abstract: A sound absorption panel (201) is constructed on an acoustically thin sheet (203) to provide an acoustic/vibrational energy absorption metamaterial structure. A plurality of dampers (101) are fixed to the acoustically thin sheet (203), and at least a subset of said dampers (101) comprise a support (103) and a flexible membrane (105) supported by the support. The flexible membrane (105) has one or more masses or platelets (107) attached. The dampers (101) in combination with the sheet (203) result in absorption of energy of movement of the sheet (203) resulting from sound transmission or vibrations across the sheet.

公开(公告)号：US20160104472A1

公开(公告)日：2016-04-14

申请号：US14892213

申请日：2014-05-27

Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Ping SHENG ,  Zhiyu YANG ,  Min YANG ,  Liang SUN ,  Guancong MA ,  Songwen XIAO

IPC: G10K11/172 ,  B32B3/28 ,  B32B3/08 ,  G10K11/20 ,  G10K11/168

CPC classification number: G10K11/172 ,  B32B3/08 ,  B32B3/28 ,  B32B2255/10 ,  B32B2255/205 ,  B32B2307/102 ,  B32B2307/546 ,  B32B2419/00 ,  B32B2605/00 ,  B32B2607/00 ,  G10K11/168 ,  G10K11/20

Abstract: 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.

Abstract translation: 使用分为多个独立的，基本上为二维的单元的基本上声学透明的平面刚性框架来构造吸声板。 将柔性材料片固定到刚性框架上，并且将多个血小板固定到柔性材料片上，使得每个单元设置有相应的血小板，从而建立共振频率，从而建立吸收系数的增加 面板。 柔性材料具有皱纹或波纹，以允许变形，具有降低的材料弹性。 褶皱或波纹允许柔性材料变形超过相同类型的平面材料提供的柔性材料，同时保持支撑多个血小板的机械强度。

公开(公告)号：US20140060962A1

公开(公告)日：2014-03-06

申请号：US14075046

申请日：2013-11-08

Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Ping SHENG ,  Zhiyu YANG ,  Min YANG ,  Liang SUN ,  Guancong MA ,  Songwen XIAO

IPC: G10K11/16

CPC classification number: G10K11/16 ,  G10K11/172

Abstract: An acoustic/vibrational energy absorption metamaterial includes at least one enclosed planar frame with an elastic membrane attached having one or more rigid plates are attached. The rigid plates have asymmetric shapes, with a substantially straight edge at the attachment to said elastic membrane, so that the rigid plate establishes a cell having a predetermined mass. Vibrational motions of the structure contain a number of resonant modes with tunable resonant frequencies.

Abstract translation: 声学/振动能量吸收超材料包括至少一个具有连接有一个或多个刚性板的弹性膜的封闭平面框架。 刚性板具有不对称形状，在与所述弹性膜的连接处具有基本上直的边缘，使得刚性板建立具有预定质量的电池。 该结构的振动运动包含许多具有可调共振频率的谐振模式。