列车高速交会流固耦合振动数值仿真分析  

Numeric Analysis Method of Fluid-Solid Coupling Vibration in Train Passing by Each Other at High Speed

作　　者：崔涛[1,2] 张卫华[1] 王琰[3] 

机构地区：[1]西南交通大学牵引动力国家重点实验室,四川成都610031 [2]唐山轨道客车有限责任公司产品技术研究中心,河北唐山063035 [3]唐山轨道客车有限责任公司产品研发中心,河北唐山063035

出　　处：《机车电传动》2013年第4期1-5,共5页Electric Drive for Locomotives

基　　金：国家科技支撑计划项目(2009BAG12A01);国家973计划项目(2011CB711100);国家自然科学基金项目(50823004)

摘　　要：为了考察流固耦合关系下列车高速交会的安全特性,防止气流与列车相互作用对列车结构和运行安全性造成过大影响,综合计算流体动力学的有限体积法和系统动力学的分析方法,提出一种新的更符合实际的列车交会流固耦合振动仿真方法,同时求解流场方程和系统动力学方程,并采用流固耦合方法和传统的分离方法对350 km/h等速交会安全性进行分析,综合2种方法所得结果与线路试验数据,证明了流固耦合仿真方法的有效性,并分析了2种方法的差异。采用流固耦合方法更能保证列车高速交会安全性。In order to study safety of train passing by each other with consideration of fluid-solid coupling friendship and avoid the large damage to structure and running safety from the interaction of train and air,a new numerical analysis method of fluid-solid coupling vibration was advanced by integrating the finite volume method of computational fluid dynamics and numerical simulation method of multi-body systems dynamics,with which the flow field equations and dynamics equations of multi-body systems were solved.Safeties of trains passing by each other at speed of 350 km/h were analyzed by fluid-solid coupling method and traditional separation method respectively and compared to line test,which showed that fluid-solid coupling method was valid.And with difference analysis of the two methods,the coupling method was proved safer.

关 键 词：高速列车 列车交会 流固耦合 列车系统动力学 列车空气动力学 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程] U270.11[机械工程—车辆工程]