然后用相平面法分析滑块的运动规律，并确定爬行运动的相轨迹——极限环。

Then the slider motion is analyzed by the state-plane method. A limit circle which can describe the path of the creeping motion is found out.

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通过数值仿真分析低速进给下静动摩擦力差值和传动刚度变化对工作台输出的影响，得出工作台产生爬行运动的可能性条件。

And the influences of the variance of the static and kinematic friction and the transmission stiffness on the outputs of the worktable were analyzed with numerical simulations.

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