An adaptive fuzzy integral type sliding mode control method based on GA was proposed to control single-axis motion control system with nonlinear dynamic friction.

提出一种基于GA的自适应模糊积分型滑模控制策略，并将其用于具有非线性动态摩擦力的单轴运动控制系统中。

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Is mainly the axle axis and the bearing bush sliding friction surface wears, becomes rough, creates the bearing oil leak.

密炼机的主要是轴子轴与轴承衬的滑动摩擦表面磨损，变得粗糙，造成轴承漏油。

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X axis and Y axis adopt ball spiral rods with excellent precisions and low friction factors.

轴采用滚珠螺杆传动精度佳，摩擦系数小。

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"We're finding that when you rub a natural biological surface that has an orientation - that has a grain, if you will - and you run that grain perpendicularly to the long axis of the ridges, we find a dramatic increase in friction, " Dr Dominy told BBC News.

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