文章介绍了一种适用于280 km/h动力集中动车组的动力转向架,其二系悬挂装置采用空气弹簧,详细阐述了其结构特点和主要技术参数,分析了转向架的构架、驱动制动单元、轮对轴箱、悬挂装置和牵引装置等主要部件.对转向架的动力学性能进行了仿真分析和计算,研究结果表明转向架的设计及动力学性能符合欧洲相关标准及TSI指令的要求.

通过车轮检验及在线试验,根据轮轨蠕滑理论,研究了HXD1型机车车轮空转滑行对车轮踏面剥离的影响,结果表明HXD1型机车车轮的空转滑行会引起轮轨间较大的摩擦温升,从而加剧车轮踏面剥离,并从机车牵引特性、黏着控制、防滑性能及增黏沙砾特性等角度,分析了抑制车轮空转滑行、减小车轮踏面剥离的可行性措施.

阐述HXD1型机车车轮不圆度状态.对4种干线HXD1型机车超过4000个车轮进行不圆度测试.基于现场试验获得的大量数据探讨制动系统、制动控制方式和车轮镟修定位方式对车轮多边形的影响.研究结果表明,HXD1 、HXD1C型机车车轮存在 17～19阶多边形磨耗,HXD1B、HXD1D型机车车轮主要以偏心磨损为主.HXD1型机车车轮多边形与制动系统和制动控制方式关系不大,与车轮镟修时的定位方式关系较大.

文章介绍了HXD1系列机车转向架的主要技术特点、简统化设计,以及其主要部件的寿命和质量保证期,详细分析了机车转向架主要运用质量问题,并根据C5检修情况,并提出了HXD1系列机车转向架C6检修原则和检修建议.

The investigation processes and results of the electric locomotive steps fracture were presented. A locomotive suffered from serious vibration problem was chosen for the test and its normal operations were kept during the test. The wheel out-of-roundness (OOR) and vibrations of key components including the step, the axle box, and the bogie frame were measured before and after wheel re-profiling. The wheel OOR measured results indicated that the wheels exhibited the OOR with 12 to 19 orders before re-profiling, i.e. with a center wavelength of 200 mm in the 1/3 octave bands. And the 16 to19 orders OOR became to be dominant after re-profiling, so the wheel polygonal wear could not be absolutely removed by the wheel re-profiling. The vibration measured results showed that the step, the axle box and the bogie frame vibrated with the same dominant frequency before re-profiling,the dominant frequency of the vibration was approximately equal to the passing frequency of a polygonal wheel. The step had natural frequencies ranging from 70 Hz to 90 Hz,the wheel OOR passing frequencies coincided with the step natural frequencies when the running speed range was from 50- 80 km/h. So, the resonance of the step induced by the wheel OOR was the root cause of the fracture.

以HXD1型电力机车转向架为基础设计了HXD1F型电力机车转向架,这是我国首批自主研制的一种30吨轴重电力机车两轴转向架,对于提高我国铁路货运能力有标志性意义.文章介绍了这种货运转向架的技术参数和结构特点,简述了构架、车轮、车轴强度计算与动力学计算结论.

为比较不同数据处理方式对机车小半径曲线通过动力学性能的影响,运用多体动力学软件SIMPACK建立了某大功率交流传动电力机车动力学模型,采用不同方式对机车通过R300 m小半径曲线仿真结果处理,并与试验数据对比分析.结果表明:1)数据处理方式对机车小半径曲线通过动力学性能影响很大.轮轴横向力和轮重减载率2 m平滑后统计值比1/4周长滤波时小9.84％ ～ 22.67％,各指标变化也更平缓;脱轨系数滤波后与滤波前相比,统计值减小14.62％～28.39％,明显消除了高频干扰信号的影响,且波长越大滤波的影响越大.2)轨道不平顺越大,同一指标采用不同方式处理后变化百分比越大,数据处理方式对机车动力学性能的影响也越大.3)各指标试验中的评定值对应的仿真轨道不平顺均较平均值对应的不平顺大;不同线路条件,不同方向上轨道不平顺的差异性又各不相同.应在今后的分析中考虑数据处理和线路不平顺的差异性,使仿真更好地反应实际.

对于120 km/h等级货运六轴机车，合理设置中间轮对横动量可以降低轮缘磨耗。采用SIMPACK软件，建立货运Co-Co机车动力学模型，就横动量的设置对机车直线稳定性、横向动力学性能以及曲线通过性能的影响进行了研究。

介绍了30 t大轴重电力机车C0-C0转向架构架的技术特点,详细总结了其结构设计和技术特征,并依据UIC615-4标准进行了强度校核,结果表明转向架构架能满足大轴重电力机车的运行要求.

This paper presents the main technical characteristics of the bogie frame for 33 t heavy axle weight freight electric locomotive,and summarizes the features of the structure and technical.The evaluation of static and fatigue strengths were carried out in terms of UIC 615-4 specification.

This paper presents the assembly structure and the function of the big-screw of type HXD1B locomotive,calculates and checks the axial load,the tightening force,the strength of the big-screw,compares the control methods of the tightening force,presents and analyses the factors of the control methods,finally determines the tightening force and the control method of the big-screw.

This article presents the bogie structure of type KZ4AC passenger electric locomotive.The seal structure and water-proof design of gear box,the design of motor suspension gear and the optimal design of traction gear and dynamics performance are mainly analyzed.Dynamics experimentation results of type KZ4AC passenger electric locomotive are presented in the last place.

This paper presents the technical characteristic and main technical parameters of type HXD1B high-power AC drive electric locomotive bogie,particular presents main components structures such as frame,drive device,suspension device,traction device and so on.Analyses and tests on vehicle dynamics,main components strength such as frame,axle,traction rod and so on have been done,which show that strength and dynamics of the bogie satisfy relevant standards completely.

This paper mainly discusses the characteristics of the bogie for type HXD1C high-power AC drive electric locomotive from the aspects as structure and technical parameter.

This paper reviews the development history of bogies for freight electric locomotives in China,presents the main structure and performance parameters of various bogies,and the newtechnology applied in bogies forHexieserial high power AC drive electric locomotives.The development trend of bogies forheavyhaul electric locomotives is described.

This paper presents the technical principle,structure characteristic and performance of transmission system of type HXD1B high power AC electric locomotive which power is 9 600 kW.It is helpful to understand this locomotive about transmission system,and affords lessons on study of locomotive and vehicle bogie.

The main technical parameters and structure characteristics are put forward for the bogie of KZ4A passenger electric locomotive export to Khaskstan. In the light of the running environment and relevant Russian railway standards, the issues to be taken into account during the bogie development are presented. Detailed analysis and calculations are made to the locomotive dynamic performance and the strength of main components of the bogie. The bogie has passed the type test and running examination, covering a safety operation of 500 000 km.

This paper mainly analyses axle weight transfer calculation theory and formulas of C0-C0 nose suspended locomotive,and then realizes the axle weight transfer calculation programme of C0-C0 nose suspended locomotive through the transformation of M file in Matlab to C++ code with the help of MATcom interface software.

Reference to the other country's experience in design the axle-load of the locomotive with service speed of 200 km/h,basing on dynamics performance analysis of the locomotive and fatigue strength analysis of the main parts of the bogie,improving measures of the type KZ4A locomotive's bogie are put forward after the axle-load increased.

Adopting the radial bogie is an efiective measure solving the wheel - rail serious wear of the improved speed car and improving running security. In this paper, the primary principle and structure characteristic of a self- steering radial bogie for the controlled car of 200km/h EMU are introduced in detail. The mostly parameter of the radial mechanism are optimzed by calculating machine simulation. The dynamic performance of the bogie is forecasted, and the calculating results are compared with the test results.