Search results for: A. A. Yinusa

Items from 1 to 9 out of 9 results

article

On the Efficiency of Differential Transformation Method to the Solutions of Large Amplitude Nonlinear Oscillation Systems

M. G. Sobamowo, A. A. Yinusa, O. A. Adeleye, S. I. Alozie, more

World Scientific News > 2020 > 139 > 1 > 1-60

In this work, the efficiency of differential transformation method to the solutions of large amplitude nonlinear oscillatory systems is further established. Two cases of oscillation systems, nonlinear plane pendulum and pendulum in a rotating plane are considered. Without any linearization, discretization or series expansion of the sine and cosine of the angular displacement in the nonlinear models...

article

On the Analysis of Jump and Bifurcation Phenomena in a Forced Vibration of Geometrical Nonlinear Cantilever Beam: Application of Differential Transformation Method

M. G. Sobamowo, A. A. Yinusa, O. A. Adeleye, A. O. Oyelade, more

World Scientific News > 2020 > 140 > 26-58

One of the classical features exhibited in nonlinear dynamics of engineering systems is the jump phenomenon, which is the discontinuous change in the steady state response of a system as a parameter is slowly varied. Such phenomenon is characterized by large amplitude dynamic responses of systems to small amplitude disturbances. It is established that this phenomenon cannot be described by the standard...

article

Thermal assessment of a convective porous moving fins of different material properties using Laplace-variational iterative method

M. G. Sobamowo, O. M. Kamiyo, M. O. Salami, A. A. Yinusa

World Scientific News > 2020 > 139 > 2 > 135-154

Investigation on thermal responses of different materials subjected to variant environmental condition has been a subject of ever-increasing research interest for decades. As such, research studies have shown different materials exhibiting peculiar characteristics of commercially used heat enhancement devices. Therefore, this work presents an investigation on thermal behaviour of a convective porous...

article

Nonlinear Analysis of a Large-Amplitude Forced Harmonic Oscillation System using Differential Transformation Method-Padé Approximant Technique

M. G. Sobamowo, A. A. Yinusa, M. O. Oyekeye, S. S. Folorunsho

World Scientific News > 2020 > 140 > 139-155

This work presents the nonlinear analysis of forced harmonic oscillation system using differential transformation method-Padé approximant techniques. Without any series expansion of the included sine and cosine of the angular displacement in the nonlinear model of the system, an improved analytical solution of the dynamic model is presented. The high level of accuracy and validity of the analytical...

article

Nonlinear vibrations of single- and double-walled carbon nanotubes resting on two-parameter foundation in a magneto-thermal environment

M. G. Sobamowo, J. O. Akanmu, O. A. Adeleye, A. A. Yinusa

SN Applied Sciences > 2019 > 1 > 10 > 1-22

The excellent mechanical, electrical, structural and thermal properties coupled with high strength to weight ratio of carbon nanotubes have tremendously expanded their applications in various industrial, engineering, physical and natural sciences processes. In this work, nonlocal elasticity theory is used to analyze nonlinear vibrations of single and double-walled carbon nanotubes resting on two-parameter...

article

Nonlinear Thermally Induced Dynamic Analysis of Non-Homogenous Rectangular Plate with Varying Thickness Using Three-Dimensional Differential Transform Method

M. G. Sobamowo, S. A. Salawu, A. A. Yinusa, O. D. Makinde

World Scientific News > 2019 > 138 > 2 > 141-166

The practical importance of thermally induced varying thickness plates has recently become an area of increase interest for engineers due to its wide applications. The temperature effect alters the modulus of elasticity of the plate causing an irrational behavior of the plate. This present study presents the application of three-dimensional differential transform method (3D-DTM) to nonlinear thermally...

article

A Study on the Effects of Inclined Magnetic Field, Flow Medium Porosity and Thermal Radiation on Free Convection of Casson Nanofluid over a Vertical Plate

M. G. Sobamowo, A. A. Yinusa, O. D. Makinde

World Scientific News > 2019 > 138 > 1 > 1-64

In this paper, variational homotopy perturbation method with Padé approximant technique is applied to investigate the impacts of inclined magnetic field, flow medium porosity and thermal radiation on free convection flow and heat transfer of Casson nanofluids over a vertical plate. The accuracies of the developed analytical methods are verified by comparing the results of the analytical solutions...

article

Analysis of Transient Heat Transfer in a Longitudinal Fin with Functionally Graded Material in the Presence of Magnetic Field using Finite Difference Method

M. G. Sobamowo, G. A. Oguntala, A. A. Yinusa, A. O. Adedibu

World Scientific News > 2019 > 137 > 166-187

In this study, finite difference method is used for the numerical analysis of the transient heat transfer analysis of a convective-radiative fin with functionally graded materials under the influence of Lorentz force is presented. Three cases of developed nonlinear thermal models of linear, quadratic, exponential and power-law variations of thermal conductivity are considered. The accuracy of the...

article

A comparative study of differential transformation and homotopy perturbation methods for transient combustion analysis for iron micro-particles in a gaseous oxidizing medium

A. A. Yinusa, M. G. Sobamowo

World Scientific News > 2019 > 138 > 2 > 93-112

In this paper, a comparative study of differential transformation and homotopy perturbation methods for transient combustion analysis of iron micro-particles in a gaseous oxidizing medium is presented. Also, parametric studies are carried out to properly understand the reaction of the process and the associated burning time. Thermal radiation effect from the external surface of burning particle and...

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