51cg

Dr Tamer Elsayed

Dr Tamer Elsayed
Dr Tamer Elsayed
Dr Tamer Elsayed

Honorary Research Fellow

51cg
School/Department
School of Engineering

Biography

Honrary research fellow in Centre for Applied Dynamic Research

Prof. Mechanical Design Department, Helwan University.(2021-now).

Associate Prof. Mechanical Design Department, Helwan University.(2016-2020).

Assistant Prof.  Mechanical Design Department, Helwan University.(2011-2020).

PhD in Engineering - Sheffield University (Ph.D. Title: Modelling The Strengthening Of Glass Using Epoxy Based Coatings).

Master- Helwan University (M.Sc. Title: The Fatigue Behaviour of Polymeric Materials)

External Memberships

Reviewer of

International Journal of Mechanical Sciences

Applied Mathematical Modelling.

Structural Engineering and Mechanics.

International Journal of Pressure Vessels and Piping.

Scientia Iranica.

Engineering research Journal.

Latest Publications

  • Advances in the Dynamics of Pipes Conveying Fluids: A Review

    El-Sayed, T. A., Taima, M. S., Shoukry, F. E., Ahmed, M. M. Z.
    Vibration, vol. 9, no. 2, 40
    Contributions to Journals: Review articles
  • Semi-analytical model for rub dynamics to investigate whirling

    El-Mongy, H., El-Sayed, T., Vaziri, V., Wiercigroch, M.
    Journal of Vibration and Control
    Contributions to Journals: Articles
  • Reducing computational time in Floquet theory for the stability of rotating tapered 2D-FGM beams using Bolotin's first-order method

    Taima, M., El-Sayed, T., Ramadan, M., Friswell, M.
    Engineering Computations Journal, pp. 1-25
    Contributions to Journals: Articles
  • Coupled journal and thrust bearing dynamics considering five degree of freedom model and using second-order bearing coefficients

    Elsayed, E. K., El-Sayed, T. A., Sayed, H.
    Physics of Fluids, vol. 37, no. 10, 104111
    Contributions to Journals: Articles
  • Dynamic stability analysis of tapered rotating beams with 2D functionally graded materials: A comparative study of Floquet theory approaches

    Taima, M. S., El-Sayed, T. A., Friswell, M. I.
    Thin-walled Structures, vol. 213, 113257
    Contributions to Journals: Articles

View My Publications

Research

Research Overview

1- Modelling the dynamics of BHA:

Modelling the lateral vibrations of drill strings used in oil field industry.

2-Vibration of continuous systems:

Research is focused on obtaining exact and/or numerical solutions for complicated structural and mechanical systems. The exact solution includes the use of several algorithms in order to solve sophisticated beam or plate problems. The analytical solution includes new modifications to some mathematical methods such as variational iteration method. Recently, research is carried out on the dynamics of nano-beams.

3-Fluid structure interaction:

This work includes the investigation of the stability of pipe conveying fluids. Most recent research is focused on the fluid structure interaction resulting from water hammer.

4- Design of hydraulic turbomachinery:

Research in this area is focused on computational fluid dynamics analysis for several turbomachines such as high speed pumps, reciprocating pumps and turbocharger. It also included investigating the dynamic characterastics of journal bearings and modelling the nolinear vibrations of the turbomachinary rotors mounted on journal bearings.

 

 

Publications

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  • Finite element analyses of rotor/bearing system using second-order journal bearings stiffness and damping coefficients

    Ahmed, O., El-Sayed, T. A., Sayed, H.
    JVC/Journal of Vibration and Control, vol. 30, no. 17-18, pp. 3961-3984
    Contributions to Journals: Articles
  • Effect of Groove Depth on Herringbone Thrust Bearing Dynamic Coefficients

    Elsayed, E. K., Sayed, H., El-Sayed, T. A.
    Chapters in Books, Reports and Conference Proceedings: Conference Proceedings
  • Fatigue Failure in Polymeric Materials: Insights from Experimental Testing

    Naga, S. A. R., Elsayed, T.
    Journal of Failure Analysis and Prevention, vol. 24, no. 2, pp. 922-935
    Contributions to Journals: Articles
  • Analysis of Second-Order Thrust Bearing Coefficients Considering Misalignment Effect

    Elsayed, E. K., Sayed, H., Elsayed, T.
    Journal of Vibration Engineering & Technologies, vol. 12, pp. 1957–1977
    Contributions to Journals: Articles
  • Frequency Ratio Effects on Dynamic Behavior of Rotor-Bearing System

    Zaghlol, M. G., Sayed, H., El-Sayed, T. A.
    Chapters in Books, Reports and Conference Proceedings: Conference Proceedings
  • Thermal vibration analysis of cracked nanobeams submerged in elastic foundations by nonlocal continuum mechanics

    Taima, M. S., El Sayed, T., Friswell, M. I.
    Thin-walled Structures, vol. 193, 111249
    Contributions to Journals: Articles
  • A nontraditional method for reducing thermoelastic stresses of variable thickness rotating discs

    Eldeeb, A. M., Shabana, Y. M., El-Sayed, T. A., Elsawaf, A.
    Scientific Reports, vol. 13, 13578
    Contributions to Journals: Articles
  • Comparative study on free vibration analysis of rotating bi-directional functionally graded beams using multiple beam theories with uncertainty considerations

    Taima, M. S., Shehab, M. B., El-Sayed, T. A., Friswell, M. I.
    Scientific Reports, vol. 13, no. 1, 17917
    Contributions to Journals: Articles
  • Continuation Analysis of Rotor Bearing Systems Through Direct Solution of Reynolds Equation

    Sayed, H., El-Sayed, T. A., Friswell, M. I.
    Chapters in Books, Reports and Conference Proceedings: Conference Proceedings
  • Dynamic Analysis of Double-Tapered Rotating Beams Composed of Bidirectional Functionally Graded Materials (BFGMs)

    Taima, M. S., El-Sayed, T. A., Friswell, M. I.
    Chapters in Books, Reports and Conference Proceedings: Conference Proceedings
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