Research Articles (School for Science and Technology)

Permanent URI for this collection

https://scholar.sun.ac.za/handle/10019.1/96393

Browse

Browsing Research Articles (School for Science and Technology) by Author "Makinde, Oluwole Daniel"

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Influence of rotation on transversely isotropic piezoelectric rod coated with a thin film
    (Polish Academy of Sciences, 2018) Selvamani, Rajendran; Makinde, Oluwole Daniel
    In this paper, the influence of rotation on axisymmetric waves of a piezoelectric rod coated with a thin film is studied using constitutive form linear theory elasticity and piezo-electric equations. Potential functions are introduced to uncouple the equations of motion in radial and axial directions. The surface area of the rod is coated by a perfectly conducting material. The frequency equations are obtained for longitudinal and flexural modes of vibration and are studied numerically for PZT-4 ceramics. The computed non-dimensional frequency, phase velocity, relative frequency shift, electromechanical coupling and electric displacement are presented in the form of dispersion curves. This type of study is important in the construction of rotating sensors and gyroscope.
  • Thumbnail Image
    Item
    New developments in fluid mechanics and its engineering applications
    (Hindawi, 2013) Makinde, Oluwole Daniel; Khan, Waqar Ahmed; Chinyoka, Tirivanhu
    Fluid mechanics is an active field of research with many unsolved or partially solved problems in science and engineering. Fluid mechanics can be mathematically complex. Sometimes the problems can best be solved by numerical methods, typically using computers. Fluids have the ability to transport matter and its properties as well as transmit force; therefore fluidmechanics is a subject that is particularly open to cross-fertilization with other sciences and disciplines of engineering. The subject of fluidmechanics is highly relevant in such domains as mechanical, chemical, petrochemical, civil, metallurgical, biological, and ecological engineering.