2306 左右およびロール振動を伴う軌道を走行する車両挙動解析(OS2-2 鉄道と無人ヘリのダイナミクス,OS2 交通・物流システムのダイナミクス,オーガナイズド・セッション(OS))

Abstract

In this study, the effects of the roll vibration of the track on the running safety of railway vehicles are investigated. The roll vibrations of the top of the viaducts are caused by earthquakes. The vehicle dynamics simulator (VDS) is modified to be able to input roll vibration of the track. According to the sinusoidal oscillation analysis, the running safety of railway vehicle is decreased by approximately 10% when the ratio between the roll amplitude and the lateral amplitude of the track vibration is 0.02 rad/m. In addition, it is verified that the decreasing of the running safety due to roll vibration of the track in case of the rigid-frame structure is smaller than that in case of the pier structure. This is because that the roll vibration of the rigid-frame structure is smaller than that of the pier structure.