埋藏圆截面杆中边缘波的频谱特性分析  

Study on the Frequency Spectral Character of Edge Wave in a Buried Long Cylinder

作　　者：冯文杰[1] 张婷[1] 杨兴堂[2] 

机构地区：[1]石家庄铁道学院力学与工程科学系,石家庄050043 [2]中铁第十五工程局施工技术处,洛阳471013

出　　处：《石家庄铁道学院学报》2001年第2期5-8,共4页Journal of Shijiazhuang Railway Institute

摘　　要：分析了在无限长圆截面杆与周围背景介质完好粘接系统纵向运动时粘接体中边缘波的传播问题 ,导出了该问题的频率方程 ,研究了不同材料组合及特征尺度对其频谱特性的影响 ,并给出了相应的频谱曲线。The axially symmetric compressional edge wave in an infinite cylinder perfectly cohered with surrounding matrix is investigated.The generalized Pochhammer frequency equation is presented,and the corresponding frequency spectral curves in some range of frequency are given.Numerical results show that material parameters and geometry criteria have both important influences on spectral character.

关 键 词：边缘波 弥散 圆截面杆 广义Pochhammer频谱 频谱特性 

分 类 号：O347.4[理学—固体力学]