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contact rail相关的网络例句

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与 contact rail 相关的网络例句 [注:此内容来源于网络,仅供参考]

The complete model of locomotive and vehicle and the exact motion equations of wheel-set are established, in which, three-dimension wheel/rail contact geometry is taken into account and the Kalker's creep theory is employed to analyze the effects of the contact region of wheel/rail. An iterative procedure of solving wheel/rail creep force is proposed to improve the existed calculating method. Finally, the motion equations of vehicle with 23 DOFs are derived using the D'Alembert principle.

建立了较完善的机车车辆分析模型和较精确的轮对运动方程:考虑三维非线性轮轨接触几何关系,用Kalker蠕滑理论研究了轮轨接触区的蠕滑效应,建立了较为详细的轮对运动方程,提出用迭代法来求解轮轨蠕滑力从而对现有蠕滑力求解方法进行了改进,并采用D′Alembert原理推导了23个自由度车辆的运动方程。

The train positioning technologies in urban rail transit are analyzed. According to the characteristic that train runs circularly along fixed rail track, train positioning technology based on absolute position encoding is proposed to the closed-loop track railway in urban rail transit. The single biconditional marker, whose value is 0 or 1, is placed on each position of rail track.

针对城市轨道交通中列车在线路上循环运行的特点,在分析现有列车定位方法的基础上,提出具有封闭曲线特征轨道线路基于绝对位置编码的列车定位技术。

The comprehensive track state managing method to reduce the rail cracks around the bolt holes is proposed based on the vehicle/track nonstationary random vibration analysis and the track transfer characteristic, and is further modified through the comprehensive dynamics experiment in a railway worksite and the rail strains analysis due to the rail-fishplate interaction and the compression of fishbolt to rail bolt hole.

基于轮轨非平稳随机振动分析和轨道动态传递特性研究结果,本文提出综合整治钢轨螺栓孔裂损的措施,并分析了钢轨鱼尾板联结和螺栓杆挤压造成的钢轨螺孔应变,结合现场轨道动力学试验,完善这些措施。

Railway hardware and equipments: all kinds of clip、washers、No.70 rail spike、fishplate、anti-loosen nuts、rail anchor、rail brace、 track jack、torsional spanner, all kinds of screw spike、timber drive spike、rail bolt、fish bolt、type T bolts and other railway parts

国内外铁路及五金器材:各类型号弹条、弹垫、挡板、70型道钉、鱼尾板、防松螺母、防爬器、轨撑、起轨器、防松螺帽专用扭力扳手等器材,各类螺纹道钉、麻花道钉、轨道螺栓、鱼尾螺栓、T型螺栓、等铁路标准件。

The products are mainly exported to North America, South America, Europe and SEA etc. We can supply the complete sets of fasteners with the standard of UIC and AREMA. The complete sets of fastener include rail clips, rail pad, rail spikes, track bolts, rubber pad, insulators, shoulders, dowels and rail clamps.

中博铁路产品主要出口北美、南美、欧洲与东南亚等世界各地,可以提供UIC以及AREMA整套铁路扣件所包含的弹条、扣板、铁路道钉、铁路螺栓、绝缘垫板、轨距块、预埋座、预埋套管、铁垫板全部产品的厂家。

Handrailing for stairs shall be a two-rail system with the top rail 34 inches (86.4 cm) above the nose of the tread and the intermediate rail 17 inches (43.2 cm) below the top rail.

位于楼梯的扶手采用双轨道系统。顶栏位于阶梯突出的部分以上的34英寸(86.4厘米),中栏位于顶栏以下17英寸(43.2厘米)。

Handrailing shall be a two-rail system with the top rail 42 inches (1.07 m) above the walkway surface and the intermediate rail 21 inches (53.3 cm) below the top rail.

扶手应该采用双轨道系统。顶栏位于人行道表面以上42英寸(1.07m),中栏位于顶栏以下21英寸(53.3厘米)。

Said that after completion of high-speed rail can stimulate the development of Tak-shing, Tak-shing, the district in our city Northwest connection, was a fan, only more than 50 million people, the whole Dezhou has more than 500 million people, a small carts molasse phenomenon, we intend to land the expansion of the municipal government in Texas City, in the land acquisition process, the high-speed rail project into Dezhou City, site planning in the development zone, is located in the district of the eastern side of the Tak-shing, after high-speed rail project to Texas High Speed Rail Station as the center can flow, logistics and so on to attract the past, radiation can be opened to achieve the purpose of expanding the City .

袁科长说,高铁建成以后,可以带动德诚区的发展,德诚区在我们城市西北方面,呈扇形,只有50多万人口,整个德州市有500多万人口,有小磨拉大车的现象,所以德州市政府有意征地扩大城区,在征地过程中,高铁项目进驻德州市,站址规划在开发区,位于德诚区的东侧,高铁项目建成以后,以德州高铁站为中心可以把人流、物流等吸引过去,可以辐射开来,达到扩大城区的目的。

Analysis result shows that the dynamic interaction between wheel and rail and the rail-pad force of the strengthened track are little bigger than those of the unstrengthened track,the safety grades of the tracks are same,the strengthened track can benefit to decrease the displacements of all components of track structure obviously,to restrain the deformation of track effectively,and to reinforce the stability of railway,especially the lateral displacement and the gauge enlargement of the strengthened rail are about 33% of original rail.

分析结果表明:强化后轨道结构的轮轨动态相互作用力及轨枕支点压力均较强化前的相应值略大,但皆属相同安全合格等级;强化轨道结构位移大幅度降低,有效抑制轨道结构变形,增强线路稳定性,尤其是钢轨横向位移和轨距动态扩大量较强化前下降十分显著,前者仅约为后者的1/3左右;强化轨道也有利于降低轨下结构振动和减轻列车提速后对轨下基础的破坏。

This paper investigates the basic principle of land and real property appreciation along the line produced by urban rail transit, analyzes the action process of urban rail transit development benefit, and demonstrates the basic characteristics of vested benefit of urban rail transit by using overseas related research results for reference. On the basis, the influence circle of urban rail transit development benefit is studied, the primary model is created according to the consistence principle of trip access, and the development benefit influence circle of each station on Line 1 is caculated for trial. At the same time the development benefit influence circle of the Xin-Zhuang Station on Line 1 is analyzed according to the research data, which verifies the model results. In addition, further research problems are put forward.

本文从城市轨道交通引起轨道交通线路沿线区域内的土地和不动产增值的基本原理入手,分析城市轨道交通利益发生、扩散和转移的作用过程,借鉴国外学者的相关研究成果,阐明了城市轨道交通利益最终归属的基本特征;在此基础上,重点对城市轨道交通开发利益的影响范围进行研究,根据出行可达性一致的原则建立了城市轨道交通开发利益影响范围的初步计算模型,针对上海轨道交通1号线各车站的开发利益影响范围进行了试算;同时,根据实际调查数据对上海轨道交通1号线莘庄站的开发利益影响范围进行了对比分析,验证了模型计算结果;此外还提出了有待进一步深化研究的问题。

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The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作: 1 回顾了直线电机发展历史,电机的驱动技术演变,特别是针对直线电机的驱动,简要介绍了直线感应电机驱动电梯的优点和不同结构类型,对传统的v/f控制,基于空间矢量法的v/f控制,矢量控制,和基于电压空间矢量的直接转矩控制进行了比较,确立了本课题的研究主题:直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用,并详细阐述了注浆技术的施工流程。

I knew nor shyness nor fear, my life was boisterous.

我不懂得羞怯和惧怕,我的