查询词典 sliding friction

It is difficult to measure the static friction coefficient of the material like polyurethane. The state of friction under very low velocity with small sliding distance is a special state between static and dynamic friction. This state of friction can be called initial stages'friction.

聚氨酯弹性体材料的静摩擦系数是比较难以确定的，本文建议把滑动量较小而滑动速度又很低的这一时期的摩擦称为"初期摩擦"，它是界于静摩擦与动摩擦之间的一种特殊的摩擦状态。

Thirdly, a new type base isolation system, i. e., slide-limited friction base isolation system is presented in this paper. Based on this system, harmonic and subharmonic periodic response of S-LF subjected to harmonic motion is investigated by using Floquet theory. Dynamic response of sliding structure subjected to earthquake ground motion is calculated with a precise high order direct integration method, and the numerical results are presented in terms of maximum acceleration response spectra of supcrstructure and maximum sliding displacement response spectrum. By comparison with isolating effects of pure-friction base isolation system and resilient-friction base isolation system , it shows that the isolating characteristic of S-LF is superior to P-F and R-FBI. Through analyzing an engineering example, it is observed that the maximum inter-storey shear force and absolute acceleration of sliding structure to earthquake ground motion are very different from those of traditional structures.

提出了一种新型基础隔震模型，即带限位装置的摩擦隔震体系；基于此隔震模型，利用Floquet理论研究地面谐运动下S-LF结构的运动特性；并利用高精度的精细时程积分法，通过对地震作用下S-LF动力响应的计算，绘制了上部结构最大加速度反应谱和基底最大滑移量反应谱，并研究了各种结构参数对隔震的影响；通过与恢复力摩擦隔震系统和纯摩擦力滑移隔震系统的比较表明，S-LF的隔震性能优于P-F和R-FBI；对计算实例的分析发现，地震作用下S-LF结构的层间最大剪力和最大绝对加速度反应分布较一般传统结构有很大区别。

Dynamic response of sliding structure subjected to earthquake ground motion is calculated with a precise high order direct integration method, and the numerical results are presented in terms of maximum acceleration response spectra of supcrstructure and maximum sliding displacement response spectrum. By comparison with isolating effects of pure-friction base isolation system and resilient-friction base isolation system , it shows that the isolating characteristic of S-LF is superior to P-F and R-FBI. Through analyzing an engineering example, it is observed that the maximum inter-storey shear force and absolute acceleration of sliding structure to earthquake ground motion are very different from those of traditional structures.

提出了一种新型基础隔震模型，即带限位装置的摩擦隔震体系；基于此隔震模型，利用Floquet理论研究地面谐运动下S-LF结构的运动特性；并利用高精度的精细时程积分法，通过对地震作用下S-LF动力响应的计算，绘制了上部结构最大加速度反应谱和基底最大滑移量反应谱，并研究了各种结构参数对隔震的影响；通过与恢复力摩擦隔震系统和纯摩擦力滑移隔震系统的比较表明，S-LF的隔震性能优于P-F和R-FBI；对计算实例的分析发现，地震作用下S-LF结构的层间最大剪力和最大绝对加速度反应分布较一般传统结构有很大区别。

If two mutual contacts, and relatively static objects, such as forcing under only a relative sliding trend, and not a relative sliding, they face contact between the obstacles in the relative sliding of that "static friction ."

如果两个相互联系，并相对静止的物体，如强迫下只是一个相对下降的趋势，而不是一个相对滑动，他们面对面的接触之间的障碍，在相对滑动的"静摩擦力"。

A low-friction sliding mechanism includes a pair of sliding members having respective sliding surfaces slidable relative to each other and an ionic liquid applied to the respective sliding surfaces.

低摩擦滑动机构包括具有可彼此相对滑动的各自滑动表面的一对滑动构件和施加于各自滑动表面的离子液体。

Introduce the cohesion-friction model of rock strength theory, and extend the model to select the strength of sliding plane, discuss the variation rules of peak strength and residual strength under different normal stress, and then present the selection model of shearing strength. After the result of cohesion-friction model is compared with Coulomb Criterion, it is found that when the results of shearing strength are many and adjacent the strength parameters can not be regressed by least square method, instead the results should be divided into some beelines at that time according to the cohesion-friction model.(4) Discuss the characters of hard structural plane and weak structural plane: The adhesive friction theory is applied to research the changing course of shear area of hard structural plane and its influence on shear stress.

3介绍了岩石强度理论中的粘接摩擦模型，运用此模型分析依附型滑动面的演化过程，并将其推广到边坡岩土体抗剪强度的选取，讨论了不同法向应力下峰值强度和残余强度随法向应力的变化规律，在此基础上给出抗剪强度的选取模式，讨论了对实际取值结果的影响，并与传统的Coulomb准则进行了比较分析，指出直剪试验的法向应力在小应力区的点较多且抗剪强度结果差异不大时，不宜直接运用最小二乘法回归抗剪强度参数，此时应结合粘接摩擦模型对结果进行线性分段。

In this mode,l a grid- section model is introduced to determine the sectional tangent stiffness of reinforced concrete beam element and analyze its degeneration process, and three-node friction-sliding tendon elements are employed to analyze the friction and sliding of external tendons at deviators or sliding blocks.

引入分块截面模型确定钢筋混凝土梁单元截面的切线刚度和分析其退化过程，采用三节点摩擦滑移预应力筋单元分析体外预应力筋在转向块或滑块处的摩擦滑移效应。

The invention provides a low-friction sliding mechanism, a low-friction agent composition, a friction reduction method, a manual transmission and a final reduction gear unit that can exert very excellent low friction characteristics to sliding surfaces present under various applications, and, in particular, that have more excellent low friction characteristics than that of a combination of an existing steel material and an organic Mo compound.

本发明提供低摩擦滑动机构、低摩擦剂组合物、减小摩擦的方法、手动变速器和最终传动减速器，其在不同应用下会对所存在的滑动表面表现出极其优良的低摩擦特性，并且，尤其是其比现有的钢材和有机Mo化合物的组合具有更优良的低摩擦特性。

A spring-block model to forecast the movement of sliding body is presented, in which the deformation and speed inhomogeneousness of sliding mass, the energy conversion and dissipation and the friction on the slip surface are also considered. The deformation of single sliding body in the whole sliding process can be determined by numerical method.

考虑到滑落体滑动过程的速度和变形的不均匀性、变形能的积累与释放以及滑体与滑床的摩擦等，建立了滑落体运动的弹簧滑块模型，该模型通过数值计算的方法可以计算滑落体滑动全过程的变形。

The control device is a wire rope hoist rope sliding friction brake Kasheng rope device, in the same area-the volume can be used, simply to slip justice enter into a signal vol pier signal to the tank, mechanical grasping rope Some are the same, only different needs of the dynamic system, hydraulic power to be provided by different, in the normal time for justice can also be used for Kasheng.

这个钢丝绳操控装置是一种摩擦提升机钢丝绳滑绳制动卡绳装置，在防过卷方面同样可以用到，只需要把滑绳的信号输入换成过卷墩罐的信号即可，机械抓绳部分是一样的，只是需要的制动力不同，液压油缸需提供的力也不同，在平时的换绳的时候也可以用作卡绳器。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。