Abstract: Squeeze film damper has good vibration attenuation effect to high-speed rotor. A grinding wheel spindle with squeeze film dampers is designed base on the theory of squeeze film damping. Differential equation of grinding wheel spindle center is established and the center trace of grinding wheel center is established and the center trace of grinding wheel spindle is simulated. A grinding experiment was done on a high-precision hole grinding machine. The experiment result shows that the squeeze film damper with reasonable parameters has supper attenuating vibration property to grinding wheel spindle, and can attenuate vibration of grinding wheel spindle 30% to 45% improve machining quality of precision hole 10% to 20%, work efficiency of machine tool 15% to 25%.

Key words: Damping vibration attenuation, Grinding wheel spindle, Numerical analysis, Precision hole machining, Simulation, Squeeze film damper