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In this paper, cogging torque and unbalanced RMF which occurred in IPM type BLDC motors were investigated regarding as the effect of vibration. The main causes of electromagnetic vibration were the cogging torque and strength of Radial Magnetic Force(RMF). The minimized cogging torque model with notch and the equilibrium RMF model was designed using Design of Experiments(DOE) to reduce vibration....
In this paper, to decrease cogging torque and operating torque ripple, a barrier was installed on the rotor. Also, optimized design was carried out by Design Of Experiment(DOE) and various characteristics including torque were studied by the Finite Element Method(FEM). The modal analysis of the stator was performed and the natural frequency was calculated. The analysis of displacement by the Radial...
This paper presents a reduction method of vibration based on decreased cogging torque for interior type permanent magnet motor. The vibration source which affects biggest in the vibration of the interior type permanent magnet motor is the force, cogging torque, of the radius direction in compliance with a magnetic energy from between stator and the rotor. The notch is established in the rotor because...
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