Analysis Of The Dynamic Characteristics Of High-speed Maglev Spindle

This paper main deal with dynamic behavior of high－speed rotorssuspended by Active Magnetic Bearings(AMB)．Operational principle andstructure features of AMB spindle unlt are introduced； base on analyzingkinematics of the spindle unit under loading,the mathematical model of rigidand flexlble rotor system are established,Also the paper especially analysisdynamic behavior of rigid rotor system with the method of simulation. Thepaper covers four main parts: Ⅰ．Introduced the operational principle of AMB,derived the electromagnetic force formula of linearity； rigid and flexible rotor system model are developed,Introduced the method for flexible rotor system －－－－－－concentrated parameter. Ⅱ,I program to calculate the inherency frequency of system in MATLAB,and validate the system by means of numerical simulation． Ⅲ．The paper especially analysis dynamic behavior of rrigi rotor system and the relationship among the system parameters and the rotor stability and discusses the control method about relieving coupling Ⅳ．The mode and critical speep of flexible rotor are analyZed．...