Bearing fit is closely related to the dynamic characteristics of the spindle system. When the spindle rotates at high speed, affected by centrifugal force, load and other factors, the bearing fit will change. In this paper, the finite element method is adopted. A dynamic model of motorized spindle is established to analyze the relationship between bearing clearance and bearing stiffness. Bearing stiffness directly affects the dynamic characteristics of the spindle rotor system. The machining accuracy of spindle system decreases with the increase of clearance amount. The establishment of dynamic model of motorized spindle provides theoretical guidance for structure design of motorized spindle.
High speed motor are mainly used in aerospace, petrochemical and NC machining fields. Complex electromagnetic field is distributed in the motor. With the continuous maturity of asynchronous motor technology, research on magnetic field has been rapidly developed. In this paper, the changes of air gap and magnetic field of high speed motor under different working conditions is introduced. The magnetic field model of high-speed motor with Maxwell electromagnetic which established theory through Ansoft finite element software. The distribution of electromagnetic field in the motor is explored. The results show that the magnetic field distribution of induction motor tends to increase with the increase of the air gap magnetic field. Therefore, this study has an important guiding significance for the motor.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.