Dynamic modeling of machine tool spindle system based on substructure synthesis method

The dynamic modeling and analysis of the spindle system play an important role in the design stage of the machine tool spindle. An efficient dynamic analysis model is helpful to speed up the design process and product iteration. In this work, a spindle dynamic model is established based on the frequency domain substructure method. The frequency responses and mode shapes of the spindle system are analyzed. The influences of joint parameters on the dynamics of the spindle system are analyzed. The present study provides a reference for the rapid dynamic modeling, analysis, and forward design of the machine tool spindle.