Chaotic prediction for magnetic suspension control system of CNC machining center
LIU Chun-fang
ZHU Si-jia
Abstract：In order to eliminate the chaotic effect of magnetic suspension system,the expression of nonlinear electromagnetic force was acquired with the Taylor series expansion method.In addition,the dynamics model,space state equation and simulation model of magnetic suspension system were established.Through selecting different system parameters,initial states and external disturbances,the phase track images of magnetic suspension system at such different states as homoclinic orbit,bifurcation,chaotic track and steady state were obtained.The simulated results show that the generation area of chaotic behavior in the magnetic suspension system can be understood with the proposed method,and thus a beneficial basis for designing the controller,achieving stable suspension and high machining accuracy in a wide range and avoiding effectively the chaotic region is provided.
Keywords：magnetic suspension systeminitial statemotion trackchaotic behaviorstabilityhomoclinic orbitbifurcationexternal disturbance
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 607-612 )