Education
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PhD
Tanta University-Engineering Mathematics-2022
Thesis: Study of The Stability and Control for Some Non – Linear Dynamical Systems Subjected to Multi – Forces
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Master’s degree
Tanta University-Engineering Mathematics-2016
Thesis: Study on Existence and Stability of Solutions of Ordinary and Fractional Differential equations
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Bachelor’s degree
Tanta University-2009
Selected Publications
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T. S. Amer, Taher A. Bahnasy, H. F. Abosheiaha, A. S. Elameer and A. Almahalawy, The stability analysis of a dynamical system equipped with a piezoelectric energy harvester device near resonance, Journal of low frequency noise, vibration and active control, 2024, Vol. 0(0) 1–29, DOI: 10.1177/14613484241277308.
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Taher A. Bahnasy, T. S. Amer, A. Almahalawy, M. K. Abohamer, H. F. Abosheiaha, and A. S. Elameer, A chaotic behavior and stability analysis on quasi-zero stiffness vibration isolators with multi-control methodologies, Journal of low frequency noise, vibration and active control, 2025, Vol 0 (0), 1–23, DOI: 10.1177/14613484251316934.
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Taher A. Bahnasy, T. S. Amer, M. K. Abohamer, H. F. Abosheiaha, A. S. Elameer and A. Almahalawy, Stability and bifurcation analysis of a 2DOF dynamical system with piezoelectric device and feedback control, Scientific Reports, 477 (2024), 14:26, https://doi.org/10.1038/s41598-024-75342-z.
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Alanazy, A.; Amer, Y.A.; EL-Sayed, A.T.; Mohammed, F.S.; Bahnasy, T.A. Multi-Control Strategies on a Cubic–Quintic Nonlinear Hybrid Oscillator with External Excitation Under Resonance Conditions. Mathematics 2025, 13, 957. https:// doi.org/10.3390/math13060957.
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M. K. Abohamer, T. S. Amer, A. A. Galal, Mona A. Darweesh, A. Arab, and Taher A. Bahnasy, Nonlinear oscillations of a lumped system with series spring, piezoelectric device, and feedback controller, Scientific Reports, (2025) 15:14642 | https://doi.org/10.1038/s41598-025-97173-2.
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M. K. Abohamer, T. S. Amer, A. A. Galal, Mona A. Darweesh, A. Arab, and Taher A. Bahnasy, On chaotic behavior, stability analysis, and vibration control of the van der Pol–Mathieu–Duffing oscillator under parametric force and resonance, , Journal of low frequency noise, vibration and active control, 2025, Vol. 0(0) 1–17, DOI: 10.1177/14613484251341933.
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Taher A. Bahnasy, T. S. Amer, A. S. Elameer, and, M. K. Abohamer, Chaotic behavior analysis of a hanging wire system with NIPPFC controller, Journal of low frequency noise, vibration and active control, 2025, Vol 0 (0), 1–23, DOI: 10.1177/14613484251364343.
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Ashraf Taha EL-Sayed, Rageh K. Hussein , Yasser A. Amer, Sara S. Mahmoud, Sharif Abu Alrub and Taher A. Bahnasy, Vibration Reduction and Stability Investigation of Van Der Pol–Mathieu–Duffing Oscillator via the Nonlinear Saturation Controller. Actuators 2025, 14, 427. https://doi.org/10.3390/act14090427.
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M. K. Abohamer, Alanazy, A, T. S. Amer, Taher A. Bahnasy, Chaotic behavior and vibration suppression of a ship model via NDF controller, Journal of low frequency noise, vibration and active control, 2025, Vol 0 (0), https://doi.org/ 10.1177/14613484251380356.
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T. S. Amer, A. M. Wahba · A. A. Galal, Taher A. Bahnasy, A. F. Abolila, and M. K. Abohamer, Two-DOF Auto-Parametric Dynamical System Stability and Bifurcation Analysis with Piezoelectric and Electromagnetic Devices and Feedback Control, Journal of Vibration Engineering & Technologies (2025) 13:596 , https://doi.org/10.1007/s42417-025-02115-x.
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Asma Alanazy, Rewan F. Elbaz, T. S. Amer, S. A. Abdelhafeez, M. K. Abohamer, and Taher A. Bahnasy, Analyzing stability and bifurcation of a controlled dynamical system: A comparative study of negative velocity feedback and positive position feedback controllers, European Journal of Mechanics / A Solids, 118 (2026) 106053.
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Taher A. Bahnasy, T. S. Amer, M. K. Abohamer, Stabilization of a nonlinear pich-roll ship model via NVFBD control:Analytical and numerical investigations, Ocean Engineering, 354 (2026)124944.
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M. K. Abohamer , T. S. Amer, Taher A. Bahnasy, Impact of NDF control on stability and bifurcation of a quasi-zero stiffness isolator under resonance and external excitation, International Journal of Dynamics and Control, 14 (142), (2026), https://doi.org/10.1007/s40435-026-02064-7.
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T.S. Amer , M.K. Abohamer , T.A. Bahnasy, I.S. Hamada, A.M. Farag, Vibration and Energy Optimization in Offshore Wind Towers via Time-Delayed Nonlinear Integral Positive Position Feedback Control, J. Appl. Comput. Mech., (2026) 1-15, DOI: 10.22055/jacm.2026.48900.5585.
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Ashraf Taha EL-Sayed, Rageh K. Hussein, Yasser A. Amer, Fatma Sherif Mohammed, Sharif Abu Alrub, and Taher A. Bahnasy, NDF Controller-Based Stability Analysis and Vibration Mitigation of a Nonlinear Electromechanical Oscillator Under Primary Resonance, Machines, (2026), 14 (7), 717, https://doi.org/10.3390/machines14070717.
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