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AMB finite element analysis, structural design and control of

Author: ZhengJianQiang
Tutor: ZhuChangSheng
School: Zhejiang University
Course: Motor and electrical
Keywords: Magnetic Bearings Finite Element Method Optimization Vibration Control
CLC: TH133.3
Type: Master's thesis
Year: 2004
Downloads: 614
Quote: 5
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Abstract


This paper mainly discusses the active magnetic bearing (Active Magnetic Bearing, AMB) has dynamic characteristics analysis, structural design and foundation movement magnetic bearings - dynamic characteristics of the rotor system and other issues , with a corresponding magnetic bearing based on ANSYS Finite Element analysis system and structural optimization system. Main contents are as follows . ( 1 ) magnetic bearing dynamic characteristics of finite element analysis in this chapter were used analytical method and finite element method electromagnetic bearing dynamic characteristics were analyzed , including magnetic induction and electromagnetic force calculation, and analysis results are compared ; same time, using VB Software secondary development based on a (?) software for electromagnetic bearing dynamic characteristics of finite element analysis system , in considering the material nonlinearity , the rotor eccentricity love for different pole magnetic bearings were modeled and analyzed. Finally, this chapter briefly discusses the electromagnetic structure of the three finite element analysis . ( 2 ) electromagnetic bearing structure design are discussed in this chapter radial magnetic bearings and thrust magnetic bearing structure parameter design problem, create a magnetic bearing diameter optimization model ; maximum capacity per unit length and the smallest volume of optimization objectives , the three structural about conditions, for radial bearings are optimized ; Finally, the last chapter developed electromagnetic bearing dynamic characteristics of finite analysis system optimization system default parameters discussed in the selection . ( 3 ) foundation movement magnetic bearings - Dynamic Characteristics Analysis of Rotor System This chapter briefly discusses the basic movement in magnetic bearings - dynamic characteristics of the rotor system problems , the establishment of differential equations of motion and system state equations , and using PID control strategies single / double degree of freedom movement in the underlying magnetic bearing subsystem under the dynamic characteristics of the simulation analysis, and finally , briefly discusses the basic operation and electromagnetic bearing - rotor system vibration control problems.

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CLC: > Industrial Technology > Machinery and Instrument Industry > Mechanical parts and gear > Moving parts > Bearing
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