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Title :半無限周期構造における表面波モード解析手法
Title alternative :Surface Wave Propagation in Half-Planes Having Periodic Structures
Authors :阿部, 和久
笠原, 祐樹
紅露, 一寛
Publisher :土木学会
Issue Date :Aug-2008
Journal Title :応用力学論文集
Volume :11
Start Page :1031
End Page :1038
ISSN :1345-9139
Abstract :A surface wave analysis method is developed for half-plane, periodic structures. The wave propagation is formulated by means of the Floquet transform. By virtue of the method, the dynamic problems in an infinite domain are reduced to that in a unit cell representing the periodicity. An impedance matrix describing the relation between displacements and tractions on the surface is derived from harmonic loading of infinite periodic domain by utilizing the inverse Floquet transform. The dispersion curves are obtained by exploring the eigenvalues of the impedance matrix. To cope with the singularity encountered in the inverse transform, the integration with respect to the wave number is extended to complex number. The feasibility of the developed method is evidenced by dispersion analysis of Rayleigh waves in a homogeneous half-plane. Though some difficulties are found in the analysis for periodic structures, pass and stop bands in lower frequencies can be captured successfully.
Keywords :surface wave
periodic structure
Floquet transform
Type Local :学術雑誌論文
Language :jpn
Format :application/pdf
URI :http://hdl.handle.net/10191/24746
fullTextURL :http://dspace.lib.niigata-u.ac.jp/dspace/bitstream/10191/24746/1/11_1031-1038.pdf
Relation :https://www.jstage.jst.go.jp/article/journalam1998/11/0/11_0_1031/_pdf
Rights :公益社団法人土木学会
本文データは学協会の許諾に基づきJ-Stageから複製したものである
Appears in Collections:10 査読済論文 = Postprint

Please use this identifier to cite or link to this item: http://hdl.handle.net/10191/24746