3 动力学试验 Dynamic Test
3.1 运行稳定性试验 Test for Running Stability
3.1.1 试验目的 Test aim
检验CRH1型时速200～250公里16辆编组卧车动车组在运用线路条件下(包括直线、道岔、曲线及缓和曲线)与轮轨力有关的运行稳定性是否满足试验大纲的要求。
Check if the running stability relevant to wheel-rail force under the line conditions (including straight rail, turnout, curved rail and gentle curved rail) of 16 marshalling sleeper MU with the model of CRH1 and the speed between 200 and 250km satisfies the requirements of the test outline.
3.1.2 试验依据 Test reference
1.4 通用标准及依据；General standards and references.
GB5599-85 《铁道车辆动力学性能评定和试验鉴定规范》；
GB5599-85 “Railway Vehicles-Specification for Evaluation the Dynamic Performance and Accreditation Test”;
招标文件第五章附件2 《动力学性能试验鉴定方法及评定标准》。
Annex 2 in Chapter 5 of the Bidding Document “Identification Method and Evaluation Standard of Dynamic Performance Test”.
3.1.3 试验条件 Test condition
华译网上海翻译公司曾经翻译过大量有关动车组动力学试验的中英文专业技术资料文件，Beijing Chinese Translation Service Agency has translated many documents of Dynamic Test
1） 被试车辆 Tested cars
BST公司生产的时速200～250公里16辆编组卧车动车组由6组动力单元组成，全列16辆编组。被试车辆为CRH1-062E动车组中的1号车Mc12（ZE106201）、2号车Tp1（RW106202）和3号车M1（RW106203）。试验期间，三辆被试车均为整备状态。
The 16 marshalling sleeper MU produced by BST company with the speed between 200 and 250km are composed by 6 groups of power units, and there are 16 marshalling cars. The tested cars are No.1 car Mc12 (ZE106201), No.2 car Tp1 (RW106202) and No.3 car M1 (RW106203) in the CRH1-062E MU. During the testing period, all three tested cars are all in service state.
2） 试验线路Test line
CRH1-062E动车组的运行稳定性试验在环行线大环（R1432m圆环）试验线路和京哈线秦沈区段进行。环行线试验数据供参考。
The operation stability test of CRH1-062E MU was conducted on external big loop (circular ring of R1432m) in loop railway test base and Qinhuangdao-Shenyang Section of Beijing-Harbin Railway. The testing data of loop railway are for reference.
3） 试验速度Test speed
环行线最高试验速度为170km/h，京哈线秦沈区段最高试验速度为275km/h。
The highest testing speed on the loop railway is 170km/hm and the highest testing speed on Qinhuangdao-Shenyang Section of Beijing-Harbin Railway is 275km/h.
3.1.4 试验方法 Test method
1) 试验项目 Test items
? 脱轨系数 Derailing coefficient
脱轨系数用于评定车辆的车轮轮缘在横向力作用下是否会爬上轨面而脱轨。脱轨系数定义为爬轨侧车轮作用于钢轨上的横向力Q与其作用于钢轨上的垂直力P的比值，即脱轨系数=Q/ P。
Derailing coefficient is used to access if the wheel rim of the vehicle will creep up the rail surface and derail under the transverse force. The derailing coefficient is defined as the ratio of transverse force Q acted on the rail by rail-creeping side wheel and vertical force P acted on the rail by it, that is, derailing coefficient = Q/P.
? 轮重减载率 Rate of wheel load reduction
轮重减载率是评定在特定工况下因轮重减载过大而引起脱轨的另一种脱轨安全指标。轮重减载率定义为轮重减载量ΔP与该轴平均静轮重 的比值。即：
The rate of wheel load reduction is another derailing safety index which is used to access if derailing will be caused by too much load reduction. The rate of wheel load reduction is defined as the ratio of quantity of wheel load reduction ΔP and the average static wheel load of that axle . That is:
轮重减载率＝ ；
Rate of wheel load reduction ＝ ;
式中： ， 为实际轮重
Where: , is the actual weight of wheel
? 轮轴横向力Transverse force of wheel axle
轮轴横向力用于评定车辆在运行过程中是否会因为过大的横向力而导致轨距扩宽或线路产生严重变形等。
The transverse force of wheel axle is used to access if the railway gauge is widened or the railway is seriously distorted caused by too large transverse force during the running of train.
轮轴横向力用H表示。
The transverse force of wheel axle is represented by H.
2) 测点布置 Arrangement of measuring points
轮轨间作用力采用测力轮对方法测定。测力轮对安装在动车组的1号车Mc12、2号车Tp1和3号车M1的一位转向架上，安装轴位如图5.1-1所示。信号传输采用滑环式集流装置。
The force between wheel and rail is measured by load measuring wheelset. The load measuring wheelsets are installed on the first position bogie of No.1 car Mc12, No.1 car Tp1 and No.3 car M1, please refer to Fig.5.1-1 for the installation axle position. Slip-ring current-collecting device is adopted for signal transmission.
图5.1-1 测力轮对安装轴位（图中黑色●表示测力轮对）
Fig.5.1-1 Installation axle position of load measuring wheelset (the black ● in the Figure represents the load measuring wheelset)
在Tp1车四位轴的一侧轴端安装速度传感器。
Speed sensor is installed at the axle end at one side of Tp1 car four-position axle.
3.1.5 测试系统Test system
运行稳定性试验测试系统为基于计算机网络的集散式测试系统。各车测点通过屏蔽信号线连接到分布在各车的数据采集系统上，数采系统通过网络线与集中的试验控制计算机相连。测试系统框图见图5.1-2。测试仪器和传感器及其检定周期见表5.1-1。
The testing system of operation stability test is distribution type testing system based on computer network. The measuring points of all cars are connected to the data collection systems distributed to all cars through shielding signal line. The data collection system is connected to the testing and controlling computer through network line. The block graph of the test system sees Fig. 5.1-2. Please refer to Table 5.1-1 for the testing instruments, sensor and their verification periods.
2） 京哈线秦沈区段试验分10个速度级采样： 180 km/h、200 km/h、210 km/h、220 km/h、230 km/h、240 km/h、250 km/h、260km/h、270km/h、275km/h。试验过程中通过道岔等限速地段，以允许速度通过。
The test of Qinhuangdao-Shenyang Section of Beijing-Harbin Railway should be sampled in 10 speed levels: 180 km/h, 200 km/h, 210 km/h, 220 km/h, 230 km/h, 240 km/h, 250 km/h, 260km/h, 270km/h and 275km/h. During the testing process, the train should run with allowable speed while passing through turnout and other speed limiting sections.
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