The reason for vibration in rotating machinery is that the rotor has an imbalance, and the vibration caused by the imbalance accounts for 24% of all vibrations. For high-speed rotating machinery, the vibration caused by imbalance is more significant. Therefore, it is necessary to conduct dynamic balance inspection on the rotating components of various rotating machinery, as their quality directly affects the accuracy and lifespan of the machinery.
To perform dynamic balancing on rotating components, a dynamic balancing machine must be used, and the swing frame of the dynamic balancing machine is closely related to its detection accuracy. The dynamic characteristics of the swing frame directly affect the working performance of the dynamic balancing machine. The dynamic stiffness characteristics of the swing frame of a dynamic balancing machine directly affect the natural frequency of the swing frame. Therefore, it is necessary to conduct dynamic stiffness analysis on the swing frame of the dynamic balance machine, identify the weak links on it, provide a basis for the optimization design of the swing frame of the dynamic balance machine, and ensure that the dynamic balance experiment of the rotor can proceed smoothly.