HOME    Nuar Information    mypage        Japanese    Feedback

新潟大学学術リポジトリ Nuar >
230 大学院自然科学研究科 = Graduate School of Science and Technology >
10 学術雑誌論文 = Journal Article >
10 査読済論文 = Postprint >

 

Files in This Item:

File Description SizeFormat
jsceam2004.pdf624KbAdobe PDF
Title :レール継目部の衝撃応答解析における道床・路盤部のモデル化の影響
Title alternative :Influence of ballast- and substrate models on simulated impact response in rail joints of railway track
Authors :紅露, 一寛
阿部, 和久
石田, 誠
鈴木, 貴洋
Publisher :土木学会
Issue Date :Aug-2004
Journal Title :応用力学論文集
Volume :7
Start Page :1313
End Page :1323
ISSN :1345-9139
Description :The influence of ballast- and substrate models on simulated impact response in rail joints of railway track is investigated. In the present, the ballast and substrate are modelled with either the lumped mass or 2-D/3-D continuous models. The 3-D models have the layered or embankment structures. The lumped mass model can be effective only for simulating the impact force at the top of ballast. However, the acceleration of ballast is accurately simulated with the continuous models. Although the 2-D model tends to overestimate the sleeper- and ballast acceleration in comparison with the 3-D model, in particular in 150-300Hz frequency range, the difference between these modellings is rather small. Hence it may be practical to use the 2-D model rather than the 3-D one which consumes huge computational work.
Keywords :rail joint
track-substrate dynamic interaction
modelling of track
Type Local :学術雑誌論文
Language :jpn
URI :http://hdl.handle.net/10191/4881
fullTextURL :http://dspace.lib.niigata-u.ac.jp/dspace/bitstream/10191/4881/1/jsceam2004.pdf
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/10191/4881