Influence of bearing locations on dynamic characteristics of the system with flexible rotor supported by magnetic bearings

Author

Zhenyu, Xie ; Kaifeng, Wu ; Shuying, Zhang ; Qingcai, Shi

Author_Institution

Coll. of Mech. & Electr. Eng., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

fYear

2010

fDate

26-28 June 2010

Firstpage

5848

Lastpage

5851

Abstract

The system with flexible rotor supported by magnetic bearings is set up, in which the locations of the radial magnetic bearings can be changed. Influence of the bearing locations on dynamic characteristics of the system is studied by theoretical analysis, experimental modal analysis and actual operation of the system. The results show that the bending modal damping of the system varies obviously with the bearing locations. When the locations of the radial magnetic bearing are far from the nodes of the bending mode shapes, the vibration of the rotor can be effectively restrained when it operates on the bending modal frequencies.

Keywords

damping; magnetic bearings; modal analysis; rotors; bearing location; bending modal damping; bending modal frequencies; dynamic characteristic; flexible rotor; radial magnetic bearing; Aerodynamics; Control systems; Damping; Educational institutions; Magnetic analysis; Magnetic levitation; Modal analysis; Shape; USA Councils; Vibrations; active magnetic bearing; dynamic characteristics; modal damping; mode shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2010 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-7737-1

Type

conf

DOI

10.1109/MACE.2010.5536059

Filename

5536059