| 发明名称 | Acoustic and elastic flatband formation in phononic crystals:methods and devices formed therefrom | ||
| 摘要 | A phononic device is provided suitable for attenuating mechanical vibration, as well as acoustic vibration that propagate through a medium. Through the periodic inclusion of domains of a material in a matrix that vary in the ratio of the longitudinal speed of sound (CL) and the transverse speed of sound (CT) between the domains and the matrix of equal to or greater than 2.0 and 40, respectively; improved significant attenuation of vibration is achieved. | ||
| 申请公布号 | US8875838(B1) | 申请公布日期 | 2014.11.04 |
| 申请号 | US201313870343 | 申请日期 | 2013.04.25 |
| 申请人 | Toyota Motor Engineering & Manufacturing North America, Inc.;Arizona Board of Regents, on behalf of the University of Arizona | 发明人 | Yano Kazuhisa;Banerjee Debasish;Wu Songtao;Zhu Gaohua;Swinteck Nichlas Z.;Deymier Pierre A. |
| 分类号 | G10K11/16;G10K11/165 | 主分类号 | G10K11/16 |
| 代理机构 | Young Basile Hanlon & MacFarlane, P.C. | 代理人 | Darrow Christopher G.;Young Basile Hanlon & MacFarlane, P.C. |
| 主权项 | 1. A phononic metamaterial device comprising: a matrix of an elastomer and a dispersed phase of a plurality of periodically repeating domains of a thermoplastic resin forming a two-dimensional or three dimensional lattice; wherein a ratio of a longitudinal speed of sound in the thermoplastic resin to a longitudinal speed of sound in the elastomer is greater than or equal to 2.0, and wherein a ratio of a transverse speed of sound in the thermoplastic resin to a transverse speed of sound in the elastomer is greater than or equal to 40.0. | ||
| 地址 | Erlanger KY US | ||