2024-03-29T12:03:26Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00002838
2022-12-15T04:34:21Z
453:454
468:469:470
Wave propagation in an infinite rail discretely supported by sleepers
まくらぎ支持された無限長レールの波動伝播解析
まくらぎ支持された無限長レールの波動伝播解析
阿部, 和久
39378
古屋, 卓稔
39379
紅露, 一寛
39380
stop and pass bands
Floquet's principle
Timoshenko beam
rail/sleeper interaction
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.
journal article
土木学会
2007-08
application/pdf
応用力学論文集
10
1029
1036
応用力学論文集
AA12492021
13459139
https://niigata-u.repo.nii.ac.jp/record/2838/files/10_1029-1036.pdf
jpn
https://www.jstage.jst.go.jp/article/journalam1998/10/0/10_0_1029/_pdf
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