发明名称 |
VISCOELASTIC PHONONIC CRYSTAL |
摘要 |
A sound barrier and a method of making a sound barrier are disclosed. The sound barrier comprises a first medium comprising a viscoelastic material, and a second medium having a density smaller than the first medium, configured in a substantially periodic array of structures and embedded in the first medium. The method comprises selecting a first candidate medium comprising a viscoelastic material having a speed of propagation of longitudinal sound wave, a speed of propagation of transverse sound wave, a plurality of relaxation time constants; selecting a second candidate medium; based at least in part on the plurality of relaxation time constants, determining an acoustic transmission property of a sound barrier comprising a substantially periodic array one of the first and second candidate media embedded in the other one of the first and second candidate media; and determining whether the first and second media are to be used to construct a sound barrier based at least in part on the result of determining the acoustic transmission property. |
申请公布号 |
KR20100132485(A) |
申请公布日期 |
2010.12.17 |
申请号 |
KR20107016336 |
申请日期 |
2008.12.15 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY;THE ARIZONA BOARD OF REGENTS |
发明人 |
BERKER ALI;JAIN MANISH;PURGETT MARK D.;MOHANTY SANAT;DEYMIER PIERRE A.;MERHEB BASSAM |
分类号 |
G10K11/162;E01F8/00;G10K11/16 |
主分类号 |
G10K11/162 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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