The natural frequencies, the equation of motion and the node of vibration are discussed for the vibration system of a cradle dynamic balancing machine.
本文讨论了框架式动平衡机振动系统的自然频率运动方程、振动中心等问题；
The relationship between the vibration modes of node-diameter and node-circle and the law of their emerging are investigated.
分析了节径振型和节圆振型间的关系和出现规律。
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