Band structures of two dimensional solid/air hierarchical phononic crystals
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Band structures of two dimensional solid/air hierarchical phononic crystals
- 发表刊物：
- Physica B
- 摘要：
- The hierarchicalphononiccrystalstobeconsideredshowatwo-order‘‘hierarchical’’feature,which
consistsofsquarearrayarrangedmacroscopicperiodicunitcellswitheachunitcellitselfincludingfour
sub-units.Propagationofacousticwaveinsuchtwodimensionalsolid/airphononiccrystalsis
investigatedbythefiniteelementmethod(FEM)withtheBlochtheory.Theirbandstructure,wave
filteringproperty,andthephysicalmechanismresponsibleforthebroadenedbandgapareexplored.
The correspondingordinaryphononiccrystalwithouthierarchicalfeatureisusedforcomparison.
Obtainedresultsshowthatthesolid/airhierarchicalphononiccrystalspossesstunableoutstanding
band gapfeatures,whicharefavorableforapplicationssuchassoundinsulationandvibration
attenuation.
- 合写作者：
- Y.L. Xu, X.G. Tian, C.Q. Chen
- 卷号：
- 407
- 页面范围：
- 1995–2001
- 是否译文：
- 否
- 发表时间：
- 2012-05-03