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Frequency and non-linear anInvestigation of passive magnetic bearing with Halbach-array

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The paper has describes the complete design and investigation processes of permanent magnetic bearing. The passive magnetic bearing (PMB) rotor suspension rig employing no active control components was calculated, designed, constructed and tested. In order to increase the radial passive magnetic bearing stiffness, the Halbach-array configuration was used. The main purpose of the work was developing the nonlinear model of the PMB. Therefore, the magnetic flux circuit of the PMB was analytically calculated by using the Ohm and Kirchhoff methods. The nonlinear effects of the discrete 3D model of the PMB was analyzed using Finite Element Method (FEM). Finally, the very well matched experimental and analytical static characteristics of the passive magnetic suspension were carried out.
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