查询词典 rolling friction

Internal friction in hardened low-carbon nickel steel was measured with a torsion pendulum and an internal friction peak was observed around 155℃ with a frequency of vibration of about 2 cycles per second.

用扭摆测量淬硬低碳镍合金钢中的内耗，当振动频率约为每秒2周时，在155℃附近有一个内耗峰出现。

Internal friction in hardened carbon steels was measured with a torsion pendulum and an internal friction peak was observed around 130℃when measurements were taken from room temperature upwards.

由内耗峰的出现可以认为马氏体在第一个回火阶段中的转变产物与母体具有共格性，由于共格界面的应力感生运动而引起内耗。

The internal friction in an 18-8-3-1 Cr-Ni--Mo-Ti heat-resisting steel was measuredwith a torsion pendulum, and an internal friction peak around 520℃ was observed.

用低频扭摆测量了18-8-3-1 Cr-Ni-Mo-Ti耐热钢的内耗，在520℃附近观察到一个内耗峰。

In any type of let-off motion in which the warp sheet passes over a back roller, the tension in the horizontal part of the warp sheet will be greater than that in the warp sheet between the back roller and the beam, because if the back roller rotates, force is required to overcome friction in its bearings, and if the back roller does not rotate, there will be friction at its surface.

任何类型的送经机构，经纱片均绕过后梁，处于水平位置的经纱的张力要比后梁与织轴之间的经纱张力大。这是因为，如果后梁转动，就需要力来克服轴承处的摩擦；如果后梁不转动，在后梁表面会有摩擦。

These problems were all solution under the help of my teacher and classmates, because the entire transmission system requests the transmission quite is big, therefore used the structure to be compact, velocity ratio big worm gear worm drive; regarding two kind of different working speeds, used has dialed forks with the twin gear combination realizes between the different speed transformation; regarding the screw tap break, the decayed teeth phenomenon solution is in attacks in the refuse silk to establish the friction disk transmission, may solve this problem well using the friction disk transmission characteristic, now the Dragon Gate type taper has been basic designed, its performance has been waiting for the production practice the confirmation.

这些问题在老师和同学们的帮助下都已基本解决，由于整个传动机构所要求的传动比较大，故采用了结构紧凑，传动比大的蜗轮蜗杆传动；对于两种不同的工作速度，采用了拨叉和双联齿轮的组合来实现不同速度之间的转换；对于丝锥断裂，烂牙现象的解决办法是在攻丝头中设置摩擦片传动，利用摩擦片传动的特性就可以很好地解决这个问题，现在龙门式攻丝机已基本设计出来，其性能正在等待生产实践的验证。

The functional mechanism of friction polymeric film formed on the friction surface was also discussed.

文章还对DE成膜剂在摩擦表面上形成的摩擦聚合膜的作用机制进行了分析和探讨。

For example, If two particles have 0.7 as their surface friction, then the resulting friction between the two particles will be 1.

例如，如果两个例子的表面摩擦力是0.7，那么这两个粒子之间的最终摩擦力会是1

The friction and wear experiments results show that sticking wear takes place during the friction procedure, which results in the poor wear-resisting property of ternary eutectic alloys, due to the low quantity of hard particle of primary phase SnSb; the wear-resisting property of rapidly-solidified Pb-15wt%Sn-15wt%Sb ternary hypereutectic alloys is better than that of as cast ternary hypereutectic alloys.

摩擦磨损实验结果表明，由于三元共晶合金中作为硬质点的初生相SnSb的数量很少，所以在摩擦过程中发生了粘着磨损，导致合金耐磨性能较差；而Pb-15wt%Sn-15wt%Sb三元过共晶合金快速凝固合金的耐磨性能比普通铸态合金的耐磨性能好。

The characteristic of this series leveler iS that it has adopted two national patent technologies:group driving plate levelling machine ZL200420001176.0 and axial decelerating motor leveler ZL200520007514.6.Each top roll is driven by a set of decelerating motor.and every two lower rolls are driven by a set of dynamic system,so that the line speed of each roll iS consistent with sheet metal speed of the contacting part,and it has solved the problems existing in traditional transmission system,such as friction between sheet metal and roll surface.and mechanical interference problem in the system And the working roll adopts spherical roller bearings which have little friction resistance.so this series leveler has such advantages as high levelIing quality,Iittle noise,low energy consumption and environmental protection.compared with traditional levelers.

该系列矫平机的特色之处在于：采用分组驱动板材矫正机(ZL200420001176.0)和一种轴装式减速电机矫平机(ZL200520007514.6)两种国家专利技术，每根上辊由一套减速电机驱动，每两根下辊由一套动力系统驱动，从而使各辊的线速度与所接触部位的板料速度相一致，消除了传统传动系统存在的板料与辊面之间的摩擦和传动系统内部的机械干涉问题，同时由于工作辊的轴承均采用轧机用调心辊子轴承，摩擦阻力小，因此，该系列矫平机与传统矫平机相比，矫平质量高、噪音小、能耗低、节能环保。

Through comparisons and analyzing of a large amount of cases, the dynamic friction characteristics between slide guide and rail, including the variation tendency of friction with the parameters just like relative displacement、relative velocity、relative acceleration、contact area、lubrication condition and slide guide type, are discussed.

通过分析和比较大量的实验结果，探讨了导靴与导轨之间的摩擦特性，包括摩擦力随相对运动的位移、速度、加速度，以及正压力、润滑状况和导靴类型等参数的变化情况，为进一步的研究工作提供实验基础。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。