M. J. Devaney, and L. Eren, “Detecting motor bearing faults,” IEEE Instrumentation & Measurement Magazine, vol. 7, no. 4, pp. 30-50, 2004.
 A. M. Knight, and S. P. Bertani, “Mechanical fault detection in a medium-sized induction motor using stator current monitoring,” IEEE Trans. Energy Conversion, vol. 20, no. 4, pp. 753- 760, 2005.
 IEEE Recommended Practice for the Design of Reliable Industrial and Commercial Power Systems, IEEE Std. 493-1997, 1998.
 M. S. Ballal, Z. J. Khan, H. M. Suryawanshi, and R. L. Sonolikar, “Adaptive neural fuzzy inference system for the detection of inter-turn insulation and bearing wear faults in induction motor,” IEEE Trans. Industrial Electronics, vol. 54, no. 1, pp. 250-258, 2007.
 I. Y. Onel, and M. E. H. Benbouzid, “Induction motor bearing failure detection and diagnosis: Park and Concordia transform approaches comparative study,” IEEE/ASME Trans. Mechatronics, vol. 13, no. 2, pp. 257-262, 2008.
 P. Zhang, Y. Du, T. G. Habetler, and B. Lu, “A survey of condition monitoring and protection methods for medium-voltage induction motors,” IEEE Trans. Industry Applications, vol. 47, no. 1, pp. 34-46, 2011.
 Y. Shao, W. Tu, and F. Gu, “A simulation study of defects in a rolling element bearing using FEA,” Int. Conf. Control, Automation and Systems (ICCAS), pp. 596-599, 2010.
 M. Ojaghi, and N. Yazdandoos, “Winding function approach to simulate induction motors under sleeve bearing fault,” Int. Conf. Industrial Technology (ICIT), pp.158-163, 2014.
 P. Girdhar, and C. Scheffer, Practical Machinery Vibration Analysis and Predictive Maintenance, Elsevier Ltd., 2004.
 G. Oliver, “An introduction to oil whirl and oil whip,” A Quarterly Publication from Turbo Components & Engineering, vol. 3, no. 2, 2001.
 C. C. Fan, J. W. Syu, M. C. Pan, and W. C. Tsao, “Study of start-up vibration response for oil whirl, oil whip and dry whip,” Mechanical Systems and Signal Processing, vol. 25, no. 8, pp. 3102-3115, 2011.
 M. Ojaghi, and S. Nasiri, “Modeling eccentric squirrel cage induction motors with slotting effect and saturable teeth-reluctances,” IEEE Trans. Energy Conversion, vol. 29, no. 3, pp. 619-627, 2014.
 S. F. Legowski, A. H. M. Sadrul Ula, and A. M. Trzyndlowski, “Instantaneous power as a medium for the signature analysis of induction motor,” IEEE Trans. Industry Applications, vol. 32, no. 4, pp. 904-909, 1996.
 A. M. Trzyndlowski, M. Ghassemzadeh, and S. F. Legowski, “Diagnosis of mechanical abnormalities in induction motors using instantaneous electric power,” IEEE Trans. Energy Conversion, vol. 14, no. 4, pp. 1417-1423, 1999.
 Z. Liu, X. Yin, Z. Zhang, D. Chen, and W. Chen, “Online rotor mixed fault diagnosis way based on spectrum analysis of instantaneous power in squirrel cage induction motors,” IEEE Trans. Energy Conversion, vol. 19, no. 3, pp. 485-490, 2004.
 J. Faiz, and M. Ojaghi, “Instantaneous-power harmonics as indexes for mixed eccentricity fault in mains-fed and open/closed-loop drive-connected squirrel-cage induction motors,” IEEE Trans. Industrial Electronics, vol. 56, no. 11, pp. 4718-4726, 2009.
 G. B. Kliman, and J. Stein, “Methods of motor current signature analysis,” Electric Machines and Power Systems, vol. 20, no. 5, pp. 463-474, 1992.
 J. Faiz, I. T. Ardekanei, and H. A. Toliyat, “An evaluation of inductances of a squirrel-cage induction motor under mixed eccentric conditions,” IEEE Trans. Energy Conversion, vol. 18, no. 2, pp. 252-258, 2003.
 J. Faiz, and I. Tabatabaei, “Extension of winding function theory for non-uniform air gap in electric machinery,” IEEE Trans. Magnetics, vol. 38, no. 6, pp. 3654-3657, 2002.
 G. Madescu, M. Greconici, M. Biriescu, and M. Mot, “Effects of stator slot magnetic wedges on the induction motor performances,” 13th Int. Conf. Optimization of Electrical and Electronic Equipment (OPTIM), pp. 489-492, 2012.