Parametric Study of Factors Influencing Dynamic Behavior of High Speed Spindles

The performance of a high speed spindle is mainly attributed to the dynamics of spindle system. Hence, it is very significant to simulate the dynamic behavior. Finite element analysis is carried out for a typical high speed spindle by considering various bearing preload and spacing conditions to investigate the stiffness and natural frequency rise of the spindle assembly. The design variable that contributes the most to stiffness and frequency change was found.