RECURSIVE ALGORITHM TO STUDY TRANSMISSION COEFFICIENTS FOR P-SV WAVES PROPAGATING IN ID INHOMOGENEOUS PHONONIC CRYSTALS

摘要：

A recursive algorithm based on stiffness matrix is proposed to study the P-SV wave propagation in a onedimensional phononic crystal of continuous inhomogeneous media.It could avoid the numerical instability of the transfer matrix method for the high frequency range.A power law profile is proposed for the cell of phononic crystals,where the density and modulus change continuously.!t is found that the inhomogeneity could reduce the size of the bandgaps of the transmission or reflection coefficients of the wave.

关键词： phononic crystals inhomogeneity: functional grade materials

作者: J.F.Zhao Y.D.Pan Z.Zhong

作者单位: Institue of Acoustics.Tonoji University.Shanghai 200092,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 519-522

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）