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A. T. EL-Sayed

Publications (4)

Positive Position Feedback Controller for Nonlinear Beam Subject to Harmonically Excitation

Y. A. Amer, A. T. EL-Sayed, A. M. Abdel-Wahab & H. F. Salman · Asian Research Journal of Mathematics · 2019

In this paper, the vibration reduction of the harmonically excited nonlinear beam is introduced using positive position feedback controller (PPF). The multiple-scale perturbation techniques (MSPT) up is applied to second-order to obtain the analytic results. Numerical simulations...

Open access Research Article 10.9734/arjom/2019/v12i430094

Active and Time Delay Controls on Vibrations of the Micro-Electro-Mechanical System (MEMS) Resonator

Y. A. Amer, A. T. EL-Sayed & F. O. Darwesh · Asian Research Journal of Mathematics · 2019

In this paper, the active control and time delay control are applied on a nonlinear mechanical system subjected to external force to reduce the resulted vibration. The system is modeled by a unique nonlinear differential equation. The multiple scale perturbation technique (MSPT)...

Open access Research Article 10.9734/arjom/2019/v12i430091

Non-linear Saturation Controller to Reduce the Vibrations of Vertical Conveyor Subjected to External Excitation

Y. A. Amer, A. T. EL-Sayed & M. N. Abd EL-Salam · Asian Research Journal of Mathematics · 2018

In this article, We adjusted the equations by using non-linear saturation controller (NSC) to control the vibrations of vertical conveyor. The system described by a four-degree-of-freedom (4-DOF) including the cubic non-linear terms and external excitations. We applied the multip...

Open access Research Article 10.9734/ARJOM/2018/44590

Nonlinear Saturation Controllers for Suppression the Vibration of Nonlinear Spring Pendulum

Y. A. Amer, A. T. EL-Sayed, Sahar. He. Younis & A. M. Salem · Asian Research Journal of Mathematics · 2018

In this work, we apply the Averaging Method to obtain the theoretical results. The Nonlinear Saturation Controller (NSC) is proposed to decrease the vacillations of the spring pendulum. We investigate the stability of the system nigh the resonance condition by applying the freque...

Open access Research Article 10.9734/ARJOM/2018/44589