Title :
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
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;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7737-1
DOI :
10.1109/MACE.2010.5536059
