PREDICTION OF HORSESHOES CHAOS IN ACTIVE MAGNETIC BEARINGS WITH TIME-VARYING STIFFNESS

被引：0
|
作者：
Kwuimy, C. A. Kitio [1 ]
Nataraj, C. [1 ]
机构：
[1] Villanova Univ, Dept Mech Engn, Villanova, PA 19085 USA
来源：
PROCEEDINGS OF THE ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE 2011, VOL 1, PTS A AND B: 23RD BIENNIAL CONFERENCE ON MECHANICAL VIBRATION AND NOISE | 2012年
关键词：
ROTOR; SYSTEM; DYNAMICS; BEAM;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The paper considers a model of an active magnetic bearing with time-varying stiffness and investigates the effects of the control gain parameters on the appearance of horseshoes chaos. The Melnikov method is used to derive the critical conditions for chaos and numerical simulations are performed to determine the basins of attraction. It is shown that the domain of chaotic motion strongly depends on the gain parameters and that this domain increases with the magnetic force and decrease with the static current. The controller frequency omega is found to be a key parameter and has a critical effect on the enlargement of the chaotic domain.
引用
收藏
页码：1003 / 1013
页数：11
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