Publications

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2015
Dimitri, A., A. El-Shafei, A. Adly, and J. Mahfoud, Magnetic Actuator Control of Oil Whip Instability in Bearings, : IEEE, 2015. Abstract
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El-Shafei, A., A. S. Dimitri, T. Saqr, and M. El-Hakim, "Test Rig Characterization and Dynamic Testing of a Smart Electro-Magnetic Actuator Journal Integrated Bearing", Proceedings of the 9th IFToMM International Conference on Rotor Dynamics: Springer International Publishing, pp. 1145–1156, 2015. Abstract
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2014
Dimitri, A. S., J. Mahfoud, and A. El-Shafei, "Oil Whip Elimination Using Fuzzy Logic Controller", ASME Turbo Expo 2014: Turbine Technical Conference and Exposition: American Society of Mechanical Engineers, pp. V07AT31A028–V07AT31A028, 2014. Abstract
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2013
Murthy, R., J. C. Tomei, X. Q. Wang, M. P. Mignolet, and A. El-Shafei, "NONPARAMETRIC STOCHASTIC MODELING OF STRUCTURAL UNCERTAINTY IN ROTORDYNAMICS: UNBALANCE AND BALANCING ASPECTS", ASME Turbo Expo 2013 GT2013 June 3-7, 2013, San Antonio, Texas, USA: ASME, pp. GT2013–95779, 2013. Abstract
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2012
El-Hakim, M., A. S. Dimitri, T. Saqr, J. Mahfoud, A. Adly, and A. El-Shafei, "Numerical and Experimental Identification of the Static Characteristics of a combined Journal-Magnetic Bearing: Smart Integrated Bearing", Vibrations in Rotating Machinery: Institution of Mechanical Engineers, 2012. Abstract
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2011
El-Shafei, A., "Developments in Fluid Film Bearing Technology", IUTAM Symposium on Emerging Trends in Rotor Dynamics: Springer Netherlands, pp. 201–215, 2011. Abstract
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2010
El-Shafei, A., and A. S. Dimitri, "Controlling journal bearing instability using active magnetic bearings", Journal of Engineering for Gas Turbines and Power, vol. 132, no. 1: American Society of Mechanical Engineers, pp. 012502, 2010. Abstract
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Dimitri, A. S., and A. El-Shafei, "Instability control and unbalance compensation of flexible rotors supported on journal bearings using magnetic bearings", Proceedings of the 8th IFToMM international conference on rotordynamics, pp. 12–15, 2010. Abstract
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El-Shafei, A., Methods of controlling the instability in fluid film bearings, , 2010. Abstract
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Murthy, R., M. P. Mignolet, and A. El-Shafei, "Nonparametric stochastic modeling of uncertainty in rotordynamics—part i: Formulation", Journal of Engineering for Gas Turbines and Power, vol. 132, no. 9: American Society of Mechanical Engineers, pp. 092501, 2010. Abstract
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Murthy, R., M. P. Mignolet, and A. El-Shafei, "Nonparametric stochastic modeling of uncertainty in rotordynamics—part II: applications", Journal of Engineering for Gas Turbines and Power, vol. 132, no. 9: American Society of Mechanical Engineers, pp. 092502, 2010. Abstract
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2009
El-Shafei, A., S. H. Tawfick, and M. O. A. Mokhtar, "Experimental Investigation of the Effect of Angular Misalignment on the Instability of Plain Journal Bearings", ASME/STLE 2009 International Joint Tribology Conference: American Society of Mechanical Engineers, pp. 171–173, 2009. Abstract
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Murthy, R., M. P. Mignolet, and A. El-Shafei, "Nonparametric Stochastic Modeling of Uncertainty in Rotordynamics", ASME Turbo Expo 2009: Power for Land, Sea, and Air: American Society of Mechanical Engineers, pp. 881–899, 2009. Abstract
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2008
Ahmed, A. M., and A. El-Shafei, "Effect of misalignment on the characteristics of journal bearings", Journal of Engineering for Gas Turbines and Power, vol. 130, no. 4: American Society of Mechanical Engineers, pp. 042501, 2008. Abstract
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Tawfick, S. H., A. El-Shafei, and M. O. A. Mokhtar, "Field Identification of Stiffness and Damping Characteristics of Fluid Film Bearings", ASME Turbo Expo 2008: Power for Land, Sea, and Air: American Society of Mechanical Engineers, pp. 1191–1201, 2008. Abstract
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Younan, A. A., and A. El-Shafei, "Model calibration of anisotropic rotordynamic systems with speed-dependent parameters", Journal of Engineering for Gas Turbines and Power, vol. 130, pp. 042502, 2008. Abstract
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2007
El-Shafei, A., T. A. F. Hassan, A. K. Soliman, Y. Zeyada, and N. Rieger, "Neural network and fuzzy logic diagnostics of 1x faults in rotating machinery", Journal of engineering for gas turbines and power, vol. 129, pp. 703, 2007. Abstract
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El-Shafei, A., S. H. Tawfick, M. S. Raafat, and G. M. Aziz, "Some experiments on oil whirl and oil whip", Journal of Engineering for Gas Turbines and Power, vol. 129, no. 1: American Society of Mechanical Engineers, pp. 144–153, 2007. Abstract
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2006
El-Shafei, A., "Supports for Controlling Rotating Machinery Vibrations", VIBRATIONS-WILLOWBROOK-, vol. 22, no. 1: THE VIBRATION INSTITUTE, pp. 5, 2006. Abstract

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2004
El-Shafei, A., "Diagnosis of gearbox faults in the field", Vibrations in Rotating Machinery, vol. 16: Wiley, pp. 479, 2004. Abstract
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El-Shafei, A., A. S. El-Kabbany, and A. A. Younan, "Rotor balancing without trial weights", Journal of engineering for gas turbines and power, vol. 126, pp. 604, 2004. Abstract
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2003
El-Shafei, A., and N. Rieger, "Automated diagnostics of rotating machinery", ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference: American Society of Mechanical Engineers, pp. 491–498, 2003. Abstract
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Hassan, T. A. F., A. El-Shafei, Y. Zeyada, and N. Rieger, "Comparison of neural network architectures for machinery fault diagnosis", ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference: American Society of Mechanical Engineers, pp. 415–424, 2003. Abstract
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El-Shafei, A., "Perturbation solution for finite squeeze-film dampers executing linear motion", Tribology Letters, vol. 14, no. 2: Kluwer Academic Publishers-Plenum Publishers, pp. 111–121, 2003. Abstract
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El-Shafei, A., and A. S. El-Kabbany, "Rotordynamic Performance of Finite Length Squeeze Film Dampers", ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference: American Society of Mechanical Engineers, pp. 499–507, 2003. Abstract
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