DYNAMIC DESIGN METHOD FOR HIGH-SPEED DUPLEX ROLLING BEARING ELECTRIC SPINDLE ROTOR SYSTEM

摘要

The present invention provides a dynamic design method for a high-speed duplex rolling bearing electric spindle rotor system. The method comprises the following steps: step 1, structural configuration design of a high-speed duplex rolling bearing electric spindle rotor system; step 2, structural dynamics parameterization processing of a high-speed duplex rolling bearing electric spindle rotor; step 3, characteristics analysis of a 5-dimension rigidity matrix of a duplex rolling bearing; step 4, dynamics characteristics analysis of the high-speed duplex rolling bearing electric spindle rotor system; and step 5, dynamic design of the high-speed duplex rolling bearing electric spindle rotor system. The dynamic design method of a high-speed duplex rolling bearing electric spindle rotor system provided by the present invention greatly improves dynamic design precision of this type of electric spindle, shortens a design cycle, and provides an effective method for designing this type of high-speed motor spindle.