Study on secondary suspension of Maglev Conveyor with an EMPM Hybrid

In this paper, the use of a multibody dynamic model for EM-PM hybrid-type maglev conveyor was proposed in order to accurately predict dynamic characteristics, and to analyze the effect of spring and damper in suspension device. In the Maglev conveyor based on virtual prototyping, the mechanical components, joints, and force elements are represented by multibody dynamic modeling techniques. The electromagnets, permanent magnets and their control systems are also included in the mechanical model. With the coupled model, the numerical simulations were carried out to predict and analyze dynamic responses, and a prototype of the Maglev conveyor for carrying LCD glass cassette was manufactured for experimental confirmation. Some experiments were performed to confirm the practicality of the prototype. The results of simulation and test are shown and analyzed in this paper. All results indicated that the effects of the levitation control algorithm and the secondary suspension are competent for use in this suspension system with EM-PM Hybrid.