261 箱形構造物としての鉄道車両の車体上下弾性振動解析 : 車体側面の曲率を考慮した曲がりはりの導入

概要

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An analytical method to treat flexural vibration of railway vehicle carbody is investigated. From several measurement results for actual railway vehicles, it has been found that the relative vertical displacement between roof and floor couples strongly with lateral deformation of side panels. An analytical model, therefore, has to express such coupling effect correctly. A curved beam, in which circumferential and radial deformation couples each other, is introduced to express the deformation of side pillar in this study. The strain energy of the curved beam is derived based on a shell theory, and some numerical calculations are carried out. A straight and curved beam coupled system is proposed as a reduced system representing side panel of a railway vehicle carbody. Numerical result shows that the beam system can express the coupling effect between roof-floor relative vertical displacement and side panel lateral deformation successfully.
一般社団法人日本機械学会の論文
2009-08-03