Analiza drgań własnych i wymuszonych w silniku indukcyjnym

The results of computations of forces and torques in induction motor made with Fortran program and possibilities of application of FEA methods to consider the failure states during the calculations of induction machine dynamics are discussed in this paper. To calculate 3D free vibration frequencies of the rotor system of the motor under consideration the PATRAN package has been used. It allowed us to examine the resonance frequencies of the rotor. These frequencies should not appear in the forces and torques acting on the rotor in order not to cause any damage. It is meaningful to define stator and rotor teeth vibration freguencies and to compare them with the frequencies of forces acting on these elements. To determine the eigen values ABAQUS v5.8 program was used. The calculations were performed in the Academy Computational Center in Cracow, Poland.