On the base of the constant removal rate of the metal material, the motion model of tangential point tracing grinding of Non-round parts should be given respectively according to type of the parts.

基于恒金属去除率的原则，根据零件的特点分别建立了非圆零件切点跟踪磨削的运动模型。

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Compared with the purely torsional model, tangential displacements and bearing stiffness of the pinions are included in the governing equation of motion.

该模型在纯扭转模型的基础上，进一步计入了行星轮轴心沿系杆切向的位移与行星轮轴的轴承支承刚度对系统动力学性能的影响。

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Tangential air makes the particles rotating and intensifies particles' turbulent motion, so the liquid drops are easier to collide with particles and wet them.

切向风使颗粒旋转产生离心力，加剧了颗粒湍动，使床层表面呈漩涡状，这有利于喷雾液滴形成的锥面与颗粒相接触。

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