地震力对高架桥梁轨道车辆影响之动态模型  

Analysis on wheel/rail dynamic interaction of viaduct railway-vehicle subjected to earthquake loading

作　　者：董永财[1] 杨长春[1] 

机构地区：[1]中国科学院地质与地球物理研究所,北京100029

出　　处：《世界地震工程》2005年第2期70-74,共5页World Earthquake Engineering

摘　　要：将轨道车辆系统仿真成由车厢、转向架及轮轴所组成。车厢与转向架间有次悬吊系统,转向架与轮轴间则有主悬吊系统。数学模型之推导将考虑车辆横向、垂向、翻滚(roll)及摇摆(yaw)方向之运动,将车辆仿真成三维具16个自由度之系统。本研究将探讨行驶高架桥梁之轨道车辆受地震激振时,建立轨道车辆与高架桥相互耦合之动态数学模型。In this paper, the railway vehicle is considered to be three subsystems, namely carbody, bogie and wheelset. There are primary suspension systems connecting bogies and wheelsets, and secondary suspension systems between carbody and bogies. A vehicle with vertical, lateral, roll, and yaw directions motion is considered to derive the mathematical equations. A three-dimensional vehicle model with 16 degrees of freedom is used to develop the equations of train motion. In this study, two sets of equations of motion that are coupled can be developed when viaduct subjected to earthquake loading, one for the vehicle and the other for the viaduct. The equations of motion will be used to solve the dynamic response of the wheel-rail-viaduct interactions.

关 键 词：轨道车辆 高架桥梁 动态模型 地震力 动态数学模型 悬吊系统 转向架 系统仿真 相互耦合 自由度 车厢 轮轴 摇摆 行驶 

分 类 号：U270.35[机械工程—车辆工程] U448.28[交通运输工程—载运工具运用工程]