查询词典 threshold friction

Friction and wear behaviors of Ti6Al4V alloys against GCr15 steel under dry sliding were investigated on high-speed pin-on-disc tribometer. Contact temperatures due to friction heat were measured by a thermocouple inserted into the hole of the Ti6Al4V pins. Morphology, composition and phase structure of the surface and subsurface for Ti6Al4V were examined by means of scanning electron microscopy, X-ray diffraction and transmission electron microscopy.

在高速销－盘式摩擦磨损试验机上考察了Ti6Al4V销与GCr15钢盘摩擦副的干滑动摩擦磨损行为，并在线测量了销试样的摩擦接触温度，利用扫描电子显微镜、X射线衍射仪及透射电子显微镜分别对Ti6Al4V摩擦表面和次表层的微观形貌、组织成分、相结构进行研究。

It was shown that the great variation of effective unit weight and angle of internal friction of soil could result in the increase of seepage failure probability of earth dams, the effect of variation of angle of internal friction of soil was greater, and the seepage failure probability of earth dams was sensitive to variability of dam seepage. In addition, the increase of water level in reservoir would also induce great increase of seepage failure probability of earth dams.

结果分析表明，坝体渗透破坏的概率随着土体有效重度和内摩擦角变异性的增加而增加，并且土体内摩擦角的变异性对坝体渗透破坏的影响较大，坝体渗透变异性对坝体渗透破坏的影响较大；另外，随着库水位的升高，坝体发生渗透破坏的概率也显著增加。

By analyzing 3D surface morphologies and temperature field of dry sliding friction, the reason why vermicular iron has excellent dry sliding friction properties was further explained from the behaviour mechanism.

通过对试样三维表面形貌和干滑动摩擦温度场分析，进一步从机理上解释了蠕墨铸铁所具有的良好干滑动摩擦学性能。

The electromagnetic torque and force were calculated with virtual displacement method. The friction torque was done with friction law. And then the output torque was calculated.

用虚位移法计算了电磁转矩和电磁吸力，用摩擦定律计算了摩擦转矩，进而计算出输出转矩。

Friction power is generated by viscous friction loss of resistance, by the following formula, said

摩擦功率是指液体粘性阻力产生的摩擦损失，可由下式表示

At last, a model is proposed to describe time effect of the rock interface friction resistance when viscous sliding and displacement softening occur,the relaxation model of friction resistance.

基于岩石块体摩擦滑动试验反映的特征规律，本文分析了岩块随时间滑动的界面阻抗机理，并建立粘滑位移弱化时反映滑动界面阻抗时间效应的模型公式阻抗松弛模型。

By using static equilibrium law, nonlinear buckle behavior of string in deep well has been researched. In comprehensive consideration of gravity, contact force of borehole wall, axial friction and tangential friction of borehole wall on the string, pressure and viscous resistance of fluid outside of and inside of a string, differential equation of buckle has been established, which amended computational model of axial load on a string.

应用静力平衡法对深井注入管柱的非线性屈曲行为进行了研究，建立了综合考虑重力、井壁支反力、井壁对管柱的轴向摩擦力和切向摩擦力及管柱内、外流体压力和粘滞阻力联合作用下的屈曲微分方程，对注入管柱的屈曲变形及弯曲附加应力等后屈曲行为进行分析，修正了管柱轴向载荷计算模型。

Affected by the hydraulic pressure sent from the vitta, the wheel cylinder piston pushes the friction plates and makes them press down on brake disc so friction braking can be achieved. The working principle is like griping a rotaty plate with a clamp and making it stop.

分泵的活塞受油管输送来的液压作用，推动摩擦片压向制动盘发生摩擦制动，动作起来就好像用钳子钳住旋转中的盘子，迫使它停下来一样。

Rhode S M A mixed friction model for dynamically loaded contacts with application to piston ring lubrication Friction and Traction,westbury house , 1979,null

张移山%孔宪梅%陈大融关于内燃机缸套与活塞环磨合过程的数学模型机械科学与技术， 1997，01

The generator loss is composed of iron loss, bearing friction loss, bushing friction loss and windage loss.

发电机损失由铁损，轴承摩擦损失，套管摩擦损失和风阻损失组成。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

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Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。