Regular commuters have become deft at performing what is known as the Tokyo pirouette, which allows them to slide into the carriage and then stand without having to make eye contact with those who have moved aside. 东京上班族纷纷变成挤地铁的高手,可以迅速挤进车厢,还可以仅靠脚尖站立,不与那些被挤到一边的人有任何眼神交流。
The aim thereof is providing an ice and snow slide plate whose substrate's front end turns up to avoid a direct contact of a shutter and a ground, and whose strip can be adjusted momentarily. 其目的是提供一种基板前端翘起,避免闸板与地面直接接触,且板带可随时调节的冰雪滑板。
Sliding head D can slide along the metal bars, with good contact resistance wire, changing its location can change the AC ( or BC) resistance. 滑动头D可沿金属杆滑动,与电阻丝接触良好,改变其位置就可以改变AC(或BC)电阻。
A model named shear slide model is presented, which can be used to simulate the mechanical property of the contact surface between the structure and its adjacent object. 提出了可以考虑初始缝隙和切向剪切滑动的剪切滑移模型,可以用于模拟结构与相邻物体之间接触面的力学特性。
The commutator has long axial length, large mechanical stress, large deformation and worse slide contact with brush. So it has become the key of DC machine design. 电机换向器长,机械应力大,变形大,电刷与换向器的滑动接触条件变差,使换向更加趋于紧张,换向器已成为该电机研制的关键。
Status and Expectation of Pantograph Slide and Contact Wire 受电弓滑板和接触网导线材料的现状及展望
The electric contact abrasion properties on the strips of metal impregnation carbon clad in Al alloy were systematically studied under different test conditions including various slide speed, contact pressure, test current and wire surface unevenness. 在各种试验条件下(包括不同的滑动速度、接触压力、受流电流和接触导线表面不平度等参数),对铝包覆浸金属碳滑板材料进行了较为全面的试验研究。
Study on Non-Newtonian Thermal Elastohydrodynamic Lubrication of Finite Slide/ Roll Line Contact under Heavy Load 非牛顿重载滚滑工况有限长线接触热弹流研究
No matter the relative slide occurs or not, the contact bodies cannot penetrate each other in any wise. A finite element approach to solve deformable body-rigid body contact problems is developed. The finite element formulae are constructed on the basis of the virtual work principle. 针对变形体-刚体这种特殊的接触问题,应用变形体的虚功原理建立了相应的虚功方程,在此基础上得出有限元计算公式,并建立了弹塑性接触问题有限元计算的实现方法。
Study on Abnormal Temperature Field of Slide/ Roll Contact under Elastohydrodynamic Lubrication Unusual Atoms 滚滑工况弹流反常温度场的研究
Analysis of the Mechanism and Characteristics of Frictions and Wear between Pantograph Slide Block and Contact Wire 受电弓滑板&接触导线摩擦磨损机理与特性分析
It was obtained that not only the different contact modes remain in a prismatic pair with clearance in the spatial mechanism, but also the different postures of slide of P pair exist in every contact mode. 得出了空间机构中,间隙滑动副不仅存在着不同的接触模式,而且每一种接触模式滑动副的滑块又存在着不同的姿态。
Factors causing the gradient layers to produce plastic deformation under slide contact 滑动接触下影响梯度多层膜塑性变形的因素
Take Cu-base powder metallurgy strip and copper tin wire as friction, those experiment results were analyzed by introducing two relative stable coefficients, some rules between the above characteristics of slide and contact pressure, sliding speed and contact current were obtained. 以铜基粉末冶金滑板铜锡导线为摩擦副,通过引入两个相对稳定系数对实验结果进行分析,得出了滑板的载流摩擦磨损特性与接触压力、滑动速度和接触电流之间的变化规律。
Rock failure can also be seen as a process of their internal structure surface formation and reconstruction, the micro-crack initiate, macro-crack formate, structure surface slide along the contact surface in this process. 岩石破坏过程也可看成是其内部结构面形成、重构的过程,在这个过程中,微裂纹萌生、宏观裂纹形成、结构面贯通及沿接触面滑移等现象交织在一起。
By changing the stiffness of the bottom or forepart of the slide block, can effectively reduce the telescopic boom contact stress and improve the stress distribution in the contact area. 通过改变下滑块底部或前端刚度,可以有效降低伸缩臂滑块接触区最大应力,改善接触区应力分布。
The testing machine improved improves the dynamic balancing performance of the rotating disk and the following performance of the horizontal platform, and adds temperature detection part of the contact point between slide contact and the catenary wire. 改进的实验机提高了转动盘的动平衡性能和横向移动台的跟随性能,并且增加了滑板与接触网导线接触点的温度检测部分。
The wear characteristics and current-carrying characteristics between immersed copper carbon pantograph slide and copper-tin alloy wire are studied, and the mechanism is analyzed by using the sliding electrical contact wear test machine self developed. 利用自行研制的滑动电接触磨耗实验机,研究了浸铜碳滑板和铜锡合金导线之间的磨耗特性和载流特性,并进行机理分析。
The slide contact pressure curve of different schemes are compared, improvement effect is determined. 对比各方案滑道上接触压强分布曲线,判断优化效果。