胶合、咬死现象是高速、重载滑动摩擦副常见失效形式之一。
Scuffing appears mainly in sliding contacts under high speed-heavy load conditions.
本文以常见的力学现象为例，从理论上阐述判断静摩擦力方向的方法及作功问题的证明方法。
From the common mechanical phenomenon, present a theoretical method on how to judge the direction of static friction force.
为了研究原子尺度下摩擦力波动现象产生的本质，利用分子动力学模拟的方法从摩擦力波动周期的角度对其进行探讨。
In order to investigate the origin of the oscillation of friction force on the atomic scale, Molecular dynamics simulation is employed to research it from the period of the oscillation.
涂层在较大的P、V值范围内与各类配副均具有极低的摩擦系数和磨损量以及很高的尺寸稳定性；长期工作过程中，涂层未出现任何破坏现象。
Under a wide range of P and V value, there are very low friction coefficient and wear, high dimensional stability for coating-metal pairs and no any damage during the test of nylon coating.
结果表明：干摩擦力的存在使齿轮联轴器附加力发生改变，其附加力具有明显的迟滞现象。
And the results show that the existence of dry fiction results in the changes and obvious inertance of the additional force.
结果表明：干摩擦力的存在使齿轮联轴器附加力发生改变，其附加力具有明显的迟滞现象。
And the results show that the existence of dry fiction results in the changes and obvious inertance of the additional force.
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