The complex forces on cage of the high - speed cylindrical roller bearing has been analyzed, and the collision dynamics model and dynamics motion equation of the cage have been set up.

分析了高速滚子轴承中保持架的复杂受力，建立了保持架的碰撞动力学模型和保持架的动力学运动方程。

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Further topics include kinematics, particle dynamics, motion relative to accelerated reference frames, work and energy, impulse and momentum, systems of particles and rigid body dynamics.

更进一步探讨运动学，质点动力学，于加速座标系上之运动行为，功，能量，冲量，动量和质点系统与刚体动力学。

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As Ruina puts it: "The operating system has to be versatile enough to include uncontrolled dynamics as part of the motion but not too versatile to be cumbersome."

正如瑞纳（Ruina）所说："操作系统必须是功能全面，motion必须能包含uncontrolleddynmaics，但也不能功能太多以至于运行缓慢。"

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We are really pushing things to the limit in terms of their strength, so it is essential that we get the dynamics of motion right.

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Gravity, he figured, was a warping of space and time, and he came up with the equations that describe how the dynamics of this curvature result from the interplay between matter, motion, and energy.

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