Publications

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2002
El-Shafei, A., "Active control algorithms for the control of rotor vibrations using hybrid squeeze film dampers", Journal of engineering for gas turbines and power, vol. 124, no. 3: American Society of Mechanical Engineers, pp. 598–607, 2002. Abstract
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El-Shafei, A., "Diagnosis of Installation Problems of Turbomachinery", ASME Turbo Expo 2002: Power for Land, Sea, and Air: American Society of Mechanical Engineers, pp. 525–534, 2002. Abstract
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El-Shafei, A., "A finite difference model for squeeze film dampers.", Journal of Engineering and Applied Science, vol. 49, no. 1, pp. 159–174, 2002. Abstract
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El-Shafei, A., "Modeling finite squeeze film dampers", ASME Turbo Expo 2002: Power for Land, Sea, and Air: American Society of Mechanical Engineers, pp. 1175–1186, 2002. Abstract
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El-Shafei, A., and R. Y. K. Yakoub, "Optimum design of squeeze film dampers supporting multiple-mode rotors", Journal of engineering for gas turbines and power, vol. 124, no. 4: American Society of Mechanical Engineers, pp. 992–1002, 2002. Abstract
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El-Shafei, A., "Rotor-Dynamic Analysis of Rotating Machinery", VIBRATIONS-WILLOWBROOK-, vol. 18, no. 3: THE VIBRATION INSTITUTE, pp. 6–10, 2002. Abstract
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2001
Yakoub, R. Y., and A. El-Shafei, "The nonlinear response of multimode rotors supported on squeeze film dampers", Journal of engineering for gas turbines and power, vol. 123, no. 4: American Society of Mechanical Engineers, pp. 839–848, 2001. Abstract
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El-Shafei, A., "Static-couple balancing of overhung rotors", VIBRATIONS-WILLOWBROOK-, vol. 17, no. 1: THE VIBRATION INSTITUTE, pp. 6–12, 2001. Abstract
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2000
El-Shafei, A., and M. El-Hakim, "On-off Control of HSFD supported rotors", IMECHE CONFERENCE TRANSACTIONS, vol. 6: Professional Engineering Publishing; 1998, pp. 349–360, 2000. Abstract
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1999
El-Shafei, A., and M. El-Hakim, "Experimental investigation of adaptive control applied to HSFD supported rotors", ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition: American Society of Mechanical Engineers, pp. V004T03A015–V004T03A015, 1999. Abstract
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1998
Yakoub, R. Y., and A. El-Shafei, A Fast Method to Obtain the Nonlinear Response of Multi-Mode Rotors Supported on Squeeze Film Dampers Using Planar Modes, Part I and Part II,' ASME Paper Nos. 98-GT-412 and 98-GT-413, , 1998. Abstract

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Yakoub, R. Y., and A. El-Shafei, "A Fast Method to Obtain the Nonlinear Response of Multi-Mode Rotors Supported on Squeeze Film Dampers Using Planar Modes: Part I—Theory", ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition: American Society of Mechanical Engineers, pp. V005T14A039–V005T14A039, 1998. Abstract
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1997
Hathout, J. P., A. El-Shafei, and R. Youssef, "Active control of multi-mode rotor-bearing systems using HSFDs", Journal of tribology, vol. 119, no. 1: American Society of Mechanical Engineers, pp. 49–56, 1997. Abstract
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El-Shafei, A., A. T. Massoud, M. El-Hakim, J. P. Hatbout, and R. Youssef, Control of Rotor Vibrations Using Hybrid Squeeze Film Dampers, : CAIRO UNIV GIZA (EGYPT) FACULTY OF ENGINEERING, 1997. Abstract
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1996
Hathout, J. P., and A. El-Shafei, "Adaptive control for rotor-bearing systems using hybrid squeeze film dampers", IMECHE CONFERENCE TRANSACTIONS, vol. 6: MECHANICAL ENGINEERING PUBLICATIONS, pp. 671–690, 1996. Abstract
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Hathout, J. P., and A. El-Shafei, "PI control of HSFDs for active control of rotor-bearing systems", ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition: American Society of Mechanical Engineers, pp. V005T14A018–V005T14A018, 1996. Abstract
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Youssef, R., and A. El-Shafei, "Unbalance Response of a Multi-Mode Rotor Supported on Short Squeeze Film Dampers", ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition: American Society of Mechanical Engineers, pp. V005T14A006–V005T14A006, 1996. Abstract
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1995
El-Shafei, A., and M. El-Hakim, "Development of a Test Rig and Experimental Verification of the Performance of HSFDs for Active Control of Rotors", ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition: American Society of Mechanical Engineers, pp. V005T14A024–V005T14A024, 1995. Abstract
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El-Shafei, A., "Modeling fluid inertia forces of short journal bearings for rotordynamic applications", Journal of vibration and acoustics, vol. 117, pp. 462, 1995. Abstract
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1994
El-Shafei, A., M. M. El-Hakim, J. P. Hathout, and R. Y. Youssef, Development of Hybrid Squeeze Film Damper for Active Control of Rotor Vibrations, : Report No. MDP-EOARD-1/94, Cairo University, 1994. Abstract
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El-Shafei, A., and R. V. Eranki, "Dynamic analysis of squeeze film damper supported rotors using equivalent linearization", Journal of engineering for gas turbines and power, vol. 116, no. 3: American Society of Mechanical Engineers, pp. 682–691, 1994. Abstract
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El-Shafei, A., "Insights into the static and dynamic characteristics of journal bearings", Proceedings of the Fourth IFToMM International Conference on Rotordynamics, pp. 307–315, 1994. Abstract
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El-Shafel, A., and J. P. Hathout, "Modelling and Control of HSFDs for Active Control of Rotor-Bearing Systems", ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition: American Society of Mechanical Engineers, pp. V005T14A004–V005T14A004, 1994. Abstract
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1993
Zeyada, Y., A. B-Shafei, and M. Elaraby, "COMPARISON BETWEEN CONTINUOUS AND LUMPED APPROACHES IN TRANSFER MATRIX MODELLING OF ROTATING MACHINERY", Proceedings, vol. 17: Vibration Institute, pp. 97, 1993. Abstract
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El-Shafei, A., "Experimental and analytical investigation of hybrid squeeze film dampers", Journal of engineering for gas turbines and power, vol. 115, no. 2: American Society of Mechanical Engineers, pp. 353–359, 1993. Abstract
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