高速铁路钢轨波磨对车辆—轨道动态响应的影响  

Effects of Rail Corrugation of High Speed Railway on Vehicle-Track Coupling Dynamic Response

作　　者：谷永磊[1,2] 赵国堂[1,3] 金学松[4] 王衡禹[4] 吴磊[5] 

机构地区：[1]北京交通大学土木建筑工程学院,北京100044 [2]中国铁道科学研究院铁道建筑研究所,北京100081 [3]中国铁路总公司,北京100844 [4]西南交通大学牵引动力国家重点实验室,四川成都610031 [5]西南交通大学峨眉校区机械工程系,四川峨眉614202

出　　处：《中国铁道科学》2015年第4期27-31,共5页China Railway Science

基　　金：铁道部科技研究开发计划项目(2011G029-A);中国铁路总公司科技研究开发计划项目(2015G008-B)

摘　　要：在对高速铁路钢轨波磨现场调查、测试的基础上,根据铁道车辆—轨道耦合系统动力学理论,建立高速铁道车辆—板式无砟轨道动力学数值分析模型,采用现场测试得到的高速铁路钢轨波磨数据作为系统激励,研究不同深度的钢轨波磨对高速铁路轮轨相互作用、车辆运行稳定性的影响。结果表明:不同深度的钢轨波磨虽不会改变轮轨力波动的相位特征,但随着钢轨波磨深度的增加,轮轨垂向作用力、轮重减载率和轮对振动加速度均有明显增加,而构架和车体的振动加速度增加很小,可忽略不计;高速铁路钢轨波磨虽不影响乘坐舒适度,但会加速车辆簧下部件的伤损和破坏。Based on the field investigation and tests of rail corrugation of high speed railway, and according to the dynamics theory of railway vehicle-track coupling system, the dynamics numerical analysis model for the vehicle and ballastless track of high speed railway was established. The rail corrugation data of high speed railway measured from field tests were used as system excitation to study the effects of rail corruga- tion with different depths on the wheel-rail interaction and vehicle running stability of high speed railway. Results showed that, although the rail corrugation with different depths would not change the phase feature of wheel-rail force fluctuation, with the increase in the depth of rail corrugation, the wheel-rail vertical force, wheel unloading rate and the vibration acceleration of the wheelset would significantly increase. However, there would be little increase in the vibration acceleration of bogie frame and car body, which could be neglected. The rail corrugation of high speed railway will not affect ride comfort but can accelerate the damage and failure of the unsuspended components of vehicle.

关 键 词：钢轨波磨 轮轨关系 运行稳定性 动力学模型 高速铁路 

分 类 号：U213.42[交通运输工程—道路与铁道工程] U211.5