Dynamic Characteristics Simulation of High Speed Spindle Unit in CNC Machine Tool

A more accurate three-dimensional FEM model of the motorized spindle was established.Based on the model,the modal and response characteristics of the motorized spindle were analyzed.The natural frequency,vibration mode and limited speed were studied.The maximum dynamic displacements of the front end,rotor and other characteristic position on spindle were studied,the rationality of the spindle design and construction was validated.