Analysing And Researching Coupling Systems Of Maglev Suspension CNC Gantry Machine Center

There is friction between moving beam and rail of the gantry CNC machinerestricting the precision of parts. In order to improve the working accuracy of part maglevsuspend technology is applied to suspend the moving beam, so that the influence of frictionbe eliminated. It also can solve the problems of traditional methods have. Due tomechanical moving beam is suspended by the two electromagnetic suspension systems, sothere is coupling relationship between them. The main content of this paper is to analysisthe coupling of two maglev suspension systems, decouple two systems and designcontroller for decoupled single suspension system.First, through looking up a huge number of domestic reference and foreign literatureshaving a deep understand of the structure of maglev suspension system and conclude thesystem’s nonlinear mathematical model. Through force analyzing of the two maglevsuspension systems and transformation of coordinates coupling expression of two systemsis concluded. Mechanical coupling have compulsive synergy can improve thesynchronization performance of two maglev suspension system. Using the mechanicalcouple and designing speed and air cross coupling synchronization controller to furtherimprove the synchronization performance of two systems.Second, from the perspective of decoupling it is necessary to design decouplecontroller. This paper adopts α order inverse system decouple method. Due to the maglevsuspension systems is a typical nonlinear system so two coupled systems’ α order inversesystem is difficult to calculate. Support vector machine can be used to match two systems’α order inverse system. PID controller is adopted to control decoupled independent pseudolinear maglev suspension system. Finally, after decoupling passive controller is designed to control single suspensionsystem. Through establishiing suspension system of Hamilton partial differential equationsand solving those partial differential equations by constraint condition, the expression of ofpassive controller is concluded.Cross coupling synchronization controller can improve the synchronizationperformance of two coupled maglev suspension systems is verified by MATLABsimulations. Support vector machine α order inverse system can achieve the purpose ofdecoupling two coupled systems. Passive controller make the maglev suspension system beof fast response and good disturbance resistance.