摘要
采用平面波方法计算了金属 /丁腈橡胶一维杆状结构声子晶体振动带隙 ,讨论了晶格尺寸、材料组分比、金属密度对声子晶体振动带隙的影响。采用有限元方法计算了材料阻尼特性对振动带隙的影响 ,计算表明 :丁腈橡胶阻尼特性不影响振动带隙的起始频率。金属
The elastic wave band gaps of one dimensional phononic crystals which consist of metal and nitrile butadiene rubber (NBR) are investigated with plane wave expansion (PWE) method. The influences of the lattice constant, volume fraction and density of the metal are discussed. In order to investigate the effect of material damping, finite element method is employed to calculate the transmission of vibration through finite layers. Those conclusions from numerical investigations are examined by vibration experiments, which result in reasonable agreement.
出处
《振动工程学报》
EI
CSCD
北大核心
2005年第1期1-7,共7页
Journal of Vibration Engineering
基金
国家 973重大基础研究资助项目 (5 130 7)
