查询词典 rolling friction

In order to analyze the effect of friction force on contact reaction inner bearing during universal rolling of H-Beam,2D finite element model of bearing block was established using numerical simulation method.

为了分析万能法轧制H型钢的过程中，轴承内部摩擦力对滚动体接触反力的影响，利用有限元的方法建立了轴承座受力的二维有限元分析模型。

The impoved design of the D35 trailor-form is rational, since the wagon ear is connected with the heavy load by hingel joint instead of spherical articulate, and the lateral relative displacement of safety pins is very small due to the rolling stiffness of schnabel grider, so that the friction stability of spherical-surface sockets of press-down cylinders is guaranteed.

新型D35联挂改进设计是合理的，因为车耳球铰改为车耳铰销联结后，利用钳夹梁的侧扭刚度来减小安全销相对横向位移，进而保障压柱油缸球面座的摩擦稳定性。

Based on the models of imitating statics,the location of pure rolling lines on the contact ellipse was calculated to estimate the friction torque of sensitive ball bearing.

借助拟静力学分析得到了赫兹接触区纯滚动线的位置，积分求出了自旋及差动滑动引起的摩擦力矩，进而估算出灵敏球轴承的摩擦力矩，为验证所推公式的计算结果将其与相关文献的理论值及试验实测值进行了比较。

Inadvertently encountered transmission belts, belt some sense of relaxation, would like to say first belt tightly, and remove the drive belt in the rosin powder rolling a bit, so that belt covered with rosin powder to increase friction.

无意中碰到传动皮带，感觉皮带有些松弛，就想先把皮带紧紧再说，于是把传动皮带取下后在松香粉中滚了一下，使皮带上沾满松香粉末以增加摩擦力。

The effect of the friction between rolls and ring can be ignored and the effect of the spread velocity of rolling on the deformation of ring is illustrated.

通过模拟分析比较，揭示出了环件轧制过程中的金属流动规律：轧制时，环件外侧的变形最大，厚向中心部位变形最小，内侧的变形程度介于中间；环件内外环面的压应力分布和变化规律：在垂直于环件轴线的对称面上，压应力分布近似对称状态，而且在对称面上的应力最大，往端面方向开始减小；指出了环件轧制中轧辊与环件摩擦对环件成形的影响：对于环件的宽展变形，摩擦的影响很小，可以忽略；分析了环件进给速度对环件成形的影响并阐述了环件厚向中心部位凹陷产生的原因，提出防止凹陷的措施：在轧制时，尽量使用快的进给速度有利于防止端面凹陷的产生；研究了导向辊位置对环件成形以及轧辊受力的影响：导向辊的位置对环件的宽展变形影响很小，但对轧辊的受力影响较大，当导向辊的中心位置位于毛坯初始中心位置之上时，驱动辊和芯辊的受力相对较小，这是导向辊导向时优先考虑的位置。

The results show that the side wall angle is the major factor, the influence of the friction coefficient between the roller and the tube billet on the external diameter ovality and the wall thickness unevenness is secondary, and the influence of the ratio of side wall radius on the rolling force and the wall thickness unevenness is the least.

结果表明：侧壁角是最重要的影响因素，管坯和轧辊间的摩擦因数对外径椭圆度和壁厚不均的影响居于次位，侧壁半径比对轧制力和壁厚不均的影响最小。

In order to study the effects of cold-rolling deformation on damping characteristics of TiNi alloys and the relationship between the damping characteristics and the microstructure, the damping characteristics of martensite for Ti_(50)Ni_(50) alloy have been investigated systematically by DSC, TEM, DMA and sound internal friction test.

为了探讨冷轧变形对TiNi合金阻尼特性的影响，及TiNi合金马氏体的阻尼特性与组织结构之间的关系，采用示差扫描量热分析、透射电镜分析、动态机械分析和音频阻尼测试方法，系统研究了冷轧变形后Ti50Ni50合金马氏体的阻尼特性。

Addressing the effect of mandrel moving speed and mandrel friction on continuous seamless tube rolling process,a three dimensional elastic-plasticity thermal-mechanical coupled simulation is conducted with a non-linear FE analysis software named MSC.

用非线性有限元分析软件MSC Marc/Superform对连轧管芯棒速度及其摩擦系数对轧制过程的影响进行了三维弹塑性热力耦合模拟仿真，得到了芯棒速度及其摩擦系数对轧制过程力能参数及变形参数间的影响规律。

This article discusses about how to fix the position of rolling stock wheelsets onto the underfloor wheel lathe and analyses the positioning principles and characteristics of the friction driving roller s based on the underfloor wheel lathe manufactured by SCULFORT.

结合法国SCULFORT公司生产的数控不落轮机床，就机车车辆轮对在不落轮机床上的定位方法展开论述，分析其摩擦驱动轮的定位原理及其特点，并结合其它不落轮机床的定位结构形式进行了综合比较。

Built-run organizations to adopt the engineering plastics with Rolling Wheel, friction small, brisk walking, and the structure of small size, will help improve the vertical hook trip.

内置式行走机构采用带滚动轴承的工程塑料滚轮，摩擦力小、行走轻快，且结构尺寸小，有利于提高吊钩的垂直行程。

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