查询词典 contact rail

The invention provides an insulation pad which is provided with high strength and high friction between a rail cap and a clamp, wherein the pad uses stainless steel as base, two faces of the pad are baked with enamel which is sanded and roughens the surface to brush a layer of silicon rubber, the outline is the same as the inside surface of the rail joint, the aperture on the pad and aperture distance are the same as the aperture and aperture distance of the clamp.

本发明就是制造一个钢轨端头与夹板间的高强度、高摩擦力的绝缘垫板，该垫板的由不锈钢板为基底，双面烤上搪瓷，搪瓷面先经喷砂处理，使其表面粗糙后，刷上一层的硅橡胶，轮廓与钢轨接头内侧表面相同，该垫板上的孔径与孔距与钢轨与夹板的孔径与孔距相同。

In light of the resistance absorption used in the current urban rail transit which has disadvantages including the waste of energy and the accessional cooling equipment, this paper gives a capacitive absorption program, which makes full use of braking energy and reduces pollution, this is a technology that worths studying and promoting in the field of urban rail transportation.

曾建军，林知明，张建德摘要：针对目前国内城市轨道交通采用电阻吸收方式存在的浪费能量及需加装散热设备的缺点，提出了采用电容吸收的方案，该方案充分利用了制动能量，减小了环境污染。

Relationship between forces born by bridge and rail under the action of temperature variation, deflection and braking are analysed by using bridge ballast rail as an unified model , and simply supported bridges, 30 m and 40 m in span length, are calculated with a programme of finite element of two dimensional frame structure.

利用桥梁—道碴—轨道的统一模型，对桥梁温度伸缩、桥梁挠曲作用以及制动力作用下的桥轨受力关系进行了分析，并利用平面杆系有限元程序对30m及40m简支梁桥进行了计

In the development process of big cities,the balance of urban rail transit network running income has not been resolved in the past hundreds of years of the rail transit development in developed countries,in addition,it is a practical problems in the fac...

大城市发展进程中轨道交通网络运营收益平衡不仅是发达国家百年来轨道交通发展史上尚未根本解决的问题，更是我国城市化快速推进中大城市轨道交通投融资建设面临的现实难题。

Research conclusions:The analysis and comments are made on the requirements and the technical indexes of rail, sub - rail foundation, fittings and ballast bed for track structure of passenger dedicated railway line and high - speed railway in many countries, and the thinking is offered for development of the key track technologies

研究结论：对各国在高速铁路轨道结构、客运专线和高速铁路对轨道结构的要求、钢轨、轨下基础、扣件、道床等方面的技术指标做出分析和评述，并对一些关键技术的发展提出了思路。

The comparison to the interferential voltage in ballast track shows that the steel bar net of ballastless track enlarges the rail current proportion in traction current in certain degree, which raise the rail interferential voltage from the traction current slightly.

与有砟轨道的干扰电压进行对比分析的结果表明：无砟轨道钢筋网络在一定程度上增大了钢轨回流在牵引回流中的比例，使得牵引电流对轨道电路的干扰电压略有增大。

With the harmony between vertical and lateral deformation of long rail components taken into account, a transition locking structure for large expansion volume, an ending structure of the switch, a nose rail that both transfers longitudinal force efficiently and maintains turnout regularity, and a fastener system suitable for both ballast and ballastless track were developed to solve the transition choking problem of jointless turnout.

为解决无缝道岔转换卡阻问题，在考虑长大轨件纵横向协调变形的基础上，研发了适应大伸缩量的转换锁闭机构、既可有效传递纵向力又可保持道岔平顺性的尖轨及心轨跟端结构和适用于有砟和无砟轨道基础的扣件系统。

Based on rail/wheel reaction and track/bride reaction theory and systems engineering theory, new vehicle-track and vehicle-track-bridge system dynamic models are established and discussed in details, including ballast track model and ballastless track model. The characteristics of the models are:(1) vehicle-track and vehicle-track-bridge system dynamic models are coupled in vertical and lateral;(2) track vibration on bridge is taken in account, track on bridge is considered as one or two layer continuous-point supported rail model, according to actual track structure, interaction between vehicle and bridge transfer from track structure;(3) three type of ballastless track models (tieembanked, elastic-tie-block, slab track) are presented;(4) models reflect the main feature of actual vehicle, track and bridge structure, the response computation frequency of models is relatively broad, which can be applied to analyze both low frequency and high frequency vibration.

基于轮轨相互作用和线桥相互作用特点，本文从系统工程角度出发建立了车辆、有碴轨道和无碴轨道、简支箱梁桥垂向和横向耦合系统动力分析模型，该系统模型具有以下特点：（1）车线、车线桥体系均考虑为垂向、横向耦合振动系统，车线间通过轮轨接触几何关系耦合，轨道与桥梁间通过轨道与梁体间的力与位移协调条件耦合；（2）充分考虑桥上线路在车线桥系统中参振作用，根据桥上线路轨道结构特点将桥上轨道结构模型具体化，即对桥上轨道结构视为多层支承体系，车桥间的动力作用通过轨道结构来传递；（3）建立了三种形式无碴轨道动力分析模型，即长轨枕埋入式、弹性支承块式和轨道板式无碴轨道模型；（4）系统模型详细，分析频带宽，适用范围较广。

Place all testing devices on the testing machine in the following order: bearing plate, emery cloth (with the granular surface facing upward), the resilient pad to be tested, emery cloth (with the granular surface facing downward), short rail (make sure the short rail is placed within the action area of the resilient pad to be tested).

把试验装置安放在试验机上，安放顺序为：支承钢板、砂布、被测弹性垫层、砂布、短钢轨（确保短钢轨放置在被测轨下弹性垫层起作用的区域）。

Thus the lathe bed guide rail carried on special surface layer quenching processing to enhance the guide rail resisitance to wear.

床身导轨进行了特殊的表层淬火处理，从而提高了导轨的耐磨性。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"