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Title :まくらぎ支持された無限長レールの波動伝播解析
Title alternative :Wave propagation in an infinite rail discretely supported by sleepers
Authors :阿部, 和久
古屋, 卓稔
紅露, 一寛
Publisher :土木学会
Issue Date :Aug-2007
Journal Title :応用力学論文集
Volume :10
Start Page :1029
End Page :1036
ISSN :1345-9139
Abstract :Wave propagation in an infinite periodic railway track is investigated. In the analysis the constituents of a rail and sleepers are considered for the track model. Propagation modes of the periodic structure are described by virtue of the Floquet transform. This method makes it possible to reduce the infinite periodic problem to an eigenvalue problem for a unit structure with finite length. The rail is modeled by a Timoshenko beam and discretized by finite elements. Through numerical analysis the wave number-frequency curves for the propagation modes are obtained. It is found that the installation of sleepers causes a mode in which the propagation waves are accompanied by sleeper vibration. Besides, the influence of the stiffness of rubber pads on the propagation modes is discussed.
Keywords :stop and pass bands
Floquet's principle
Timoshenko beam
rail/sleeper interaction
Type Local :学術雑誌論文
Language :jpn
Format :application/pdf
URI :http://hdl.handle.net/10191/24748
fullTextURL :http://dspace.lib.niigata-u.ac.jp/dspace/bitstream/10191/24748/1/10_1029-1036.pdf
Relation :https://www.jstage.jst.go.jp/article/journalam1998/10/0/10_0_1029/_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/10191/24748