Experimental investigation on vibration behaviour of a CRH train at speed of 350 km/h
Experimental investigation on vibration behaviour of a CRH train at speed of 350 km/h
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DOI：
10.1080/23248378.2014.992819
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发表时间：
2015-01
影响因子：
4
通讯作者：
W. Zhai;Peng-fei Liu;Jianhui Lin;Kaiyun Wang
中科院分区：
文献类型：
--
作者：
W. Zhai;Peng-fei Liu;Jianhui Lin;Kaiyun Wang
本文的目的是通过在线路现场试验研究时速350公里的中国高速铁路（CRH）列车的振动特性和长期服役性能。文章首先介绍了试验方法和系统以及现场条件，包括试验列车和轨道的主要参数。选择了一种名为CRH2C的CRH动车组进行试验。进行了为期约2个月的持续试验，以获取车辆振动加速度和车轮踏面磨损的数据。基于试验数据，文章阐述了列车以350公里/小时运行时车体、转向架构架和轴箱的振动行为以及横向蛇行稳定性，以及列车在长期运行条件下动力学性能的演变。结果表明，当列车在无砟轨道上以350公里/小时的速度运行时，车辆部件的振动加速度处于较低水平，这表明乘坐舒适性和运行稳定性均可接受。通过车轮镟修，可以有效降低轴箱、转向架构架和车体的振动，从而使列车的动力学性能在较长时间内保持良好状态。
The objective of the article is to investigate the vibration characteristic and the long-term service performance of a China Railway High-speed (CRH) train at operation speed of 350 km/h through on-track field tests. The article first introduces the test method and system as well as the field conditions including the main parameters of the test train and track. A CRH electric multiple unit (EMU), called the CRH2C, is chosen for the experiment. A duration test lasting for about 2 months is carried out to acquire the data of vehicle vibration acceleration and the wheel profile wear. Based on the test data, the article presents the vibration behaviours of car body, bogie frame and axle box as well as the lateral hunting stability of the train operating at speed of 350 km/h, and the evolution of the train dynamic performance under long-term operation condition. Results show that the vibration accelerations of vehicle components are in a low level when the train runs on a non-ballasted track at the speed of 350 km/h, indicating that both the ride comfort and the running stability are acceptable. Through wheel re-profiling, it is possible to effectively reduce the vibrations of the axle box, the bogie frame and the car body, and thus the train dynamic performance can be kept in an excellent condition in a long period.