机车

Aiming at the signal processing problems that exist in online fault diagnosis for train running gear, based on discussing the principle of characteristic spectrum analysis, a method of full period and uniform angle sampling is applied, which transfers the vibration signal from time domain into angular domain. The angular domain signal is transferred into corresponding characteristic spectrum using FFT. Through spectrum estimation and analysis, fault characteristic spectrum values of running gear components are acquired to distinguish their faults.

在讨论特征分析方法原理的基础上，针对机车走行部故障在线监测过程中存在的信号分析与处理问题，运用整周期等角度采样方法将时域振动信号转换为角域信号，采用FFT变换将角域信号变换为对应的特征频谱，通过谱估计、谱图分析得到机车走行部各零部件的故障特征谱值，再根据该特征谱值识别机车走行部各零部件的故障。

The existing eguipment on railway rolling stocks, backward in technical property and with a single variety, could not meet the reguirement of high speed and heavy load.Chengdu Freight Wagon Factory, with rich manufacturing and maintaining experiences, is the large-scale factory, which manufactures railway freight wagon and freight engine in China. Already turned deficits into surpluses, with the enforcement of raising speed strategy of railway cargo transportation and quickness of technique renew, CFWFs operating system is now facing great challenge of market opening.

成都机车车辆厂就是其中的一个典型，虽然成都厂是国内从事铁路机车车辆维修和机车电机制造的大型企业，具有丰富的生产维修制造经验，但随着铁路电气化和提速战略的实施，技术更新步伐的加快，成机厂的经营机制在几年前就已面临市场开放的巨大挑战，核心产品上的优势地位也受到很大威胁。

The system also includes a transmitter (13) for transmitting the locomotive information from the locomotive to an operator control unit (12) off-board the locomotive.

该系统还包括发射机(13)，用于将该机车信息从机车传送到没有装载于机车上的操作员控制单元(12)。

Afterwards, the crash process of the thin-walled structure is simulated to find the effect of the cross section, the thickness and the pre-deformation on the crash capacity, and the axial impact deformation of the circinal tube is analyzed in the theoretical way, the axial impact deformation of the square tube and subulate tube are analyzed by simulation.

最后本文建立了原DF_(8B)机车车体正面碰撞刚性墙的仿真模型，在分析碰撞结果后，对原DF_(8B)机车车体的底架和司机室结构进行了改进；并利用薄壁圆管和锥形结构设计了吸能装置，利用凸凹相见的防爬板设计了防爬装置；对安装了吸能装置和做出结构改进的耐碰撞DF_(8B)机车以10m/s和15m/s速度正面撞击刚性墙进行仿真，结果表明碰撞时吸收装置先于车体主结构破坏，吸收碰撞能量，其吸能能力达到了国外有关标准的要求。

Because the assembly locomotive wheel which is widely used in our country may cause the digression and subversion accident because of the rim relaxation, which badly affects the safety of the railage, this article brings forward the method that adds a safety retaining ring to the rim of the assembly locomotive wheel , which can effectively prevent the serious accident such as locomotive.

针对我国机车广泛采用的组装式机车轮对，可能因轮箍弛缓造成的机车脱轨事故、颠覆，影响铁路运输安全的问题，本文提出给组装式机车轮对轮箍加装安全扣环。

Similar in many respects to the 8K are the Shaoshan 4 twin -unit locos built by Chinese Railways' domestic suppliers.

150型8K双机组机车比6K机车功率强，在许多方面和中国国产的韶山4型双机组机车相似。

This paper describes different characteristics of traction motor for freight electric locomotive and pas-senger electric locomotive.

对客运电力机车和货运电力机车所用牵引电动机的不同特点进行描述，针对货运电力机车的使用特点，提出了速度为120km/h的交流传动电力机车用牵引电动机的设计方案，并指出开发货运用途变频交流异步牵引电动机的必要性。

The theory of vehicle-track coupling dynamics is applied to the design of new locomotives, including the 200 km/h electric locomotive "Tiansuo", the speed-raised locomotive SS(7E) for passenger transport, and the speed-raised locomotive for freight transport.

介绍了车辆-轨道耦合动力学理论在新型机车车辆研制中的最新应用情况，包括在200km/h&天梭号&高速机车设计、170 km/h SS7E型提速客运电力机车改进设计，以及120 km/h提速货运电力机车研制中的应用实践。

Southern Chinese car group Zhuzhou Electric Locomotive Research Institute was founded in 1959, is a service of rolling stock in the rail transportation industry, science and technology enterprises, is part of China Southern Locomotive and Car Industry Corporation, China Nanche Zhuzhou Electric Locomotive Research Institute of the Group and its subordinate enterprises Nanche time Zhuzhou Electric Co., Ltd., Zhuzhou Times New Materials Technology Co., Ltd. and currently employs more than 5,000 people, assets totaling over 5.0 billion, annual sales of more than two billion yuan.

中国南车集团株洲电力机车研究所始创于1959年，是一家服务于轨道交通机车车辆行业的科技型企业，隶属于中国南方机车车辆工业集团公司，中国南车集团株洲电力机车研究所及其下属企业株洲南车时代电气股份有限公司、株洲时代新材料科技股份有限公司，现有员工5000余人、资产总额超过50亿元，年销售收入已逾20亿元。

The on-board module is connected with the existing safety detection devices such as TCU, LCU and TAX box, through the serial interface bus, and realizes integrated data collection from electric apparatus and control system. The intercommunication platform between the locomotive and the ground is established based on the BEIDOU satellite and GPRS system; the former is used for distant communicating while the latter is used for massive communicating. The design of the ground supervision system is fulfilled.

制定了车载单元的串口总线协议，车载主控单元通过串口总线连接机车的微机控制柜、逻辑控制单元和TAX箱等现有独立的安全检测设备，实现对机车电器部件和控制系统运用状态信息的综合数据采集；综合采用北斗卫星通信和GPRS移动通信技术构建了机车与地面之间的双向数据通信平台，前者解决了在偏远地区的数据传输问题，后者解决了机车运用状态信息的大数据量传输问题。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了