Volume 8, Issue 2
مرور بر اساس
ارسال های اخیر
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A Study of Curved Louver Fin Configuration for Heat Transfer Enhancement
(Shahid Chamran University of Ahvaz, 2022-04-01)Herein, the heat transfer performance of the curved surface of a louvered fin heat exchanger using computational fluid dynamics (CFD) is examined. Four new models are used with curved surfaces in different locations. The ...
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Strength of Steel Shell Cylindrical Panels Reinforced with an Orthogonal Grid of Stiffeners
(Shahid Chamran University of Ahvaz, 2022-04-01)The paper presents an approach to the strength analysis in steel cylindrical panels reinforced from the concave side with an orthogonal grid of stiffeners. A mathematical model of the Timoshenko (Mindlin – Reissner) type ...
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Effect of Porosity and Hygrothermal Environment on FGP Hollow Spheres under Electromechanical Loads
(Shahid Chamran University of Ahvaz, 2022-04-01)Semi-analytical studies for the porosity action of a hollow sphere made of functionally graded piezoelectric material are presented. A semi-analytical technique for radial displacement is presented. A combination of internal ...
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Research into the Properties of Selected Single Speed Two-Carrier Planetary Gear Trains
(Shahid Chamran University of Ahvaz, 2022-04-01)A two-carrier planetary gear train (PGT) configuration, named S13WN, was developed for a specific application with a negative transmission ratio in the interval between -20 and -21. 72 valid combinations of component PGTs ...
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Generation of a Quadrilateral Mesh based on NURBS for Gyroids of Variable Thickness and Porosity
(Shahid Chamran University of Ahvaz, 2022-04-01)The Gyroid is a periodic minimal surface explored in different applications, such as architecture and nanotechnology. The general topology is suitable for the construction of porous structures. This paper presents a ...
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Impact-enhanced Electrostatic Vibration Energy Harvester
(Shahid Chamran University of Ahvaz, 2022-04-01)An influence of mechanical impacts between variable capacitor electrodes on the electrostatic vibration energy harvester (e-VEH) operation is studied theoretically. The analysis is carried out for two conditioning circuits ...
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Flow Regimes Characteristics of Water-crude Oil in a Rectangular Y-microchannel
(Shahid Chamran University of Ahvaz, 2022-04-01)The paper deals with the investigation of the flow regimes of water and crude oil in a Y-microchannel. Systematic experiments allow distinguishing four different types of water-oil flow regimes in studied microchannel, ...
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Spectral Methods Application in Problems of the Thin-walled Structures Deformation
(Shahid Chamran University of Ahvaz, 2022-04-01)The spectral method (p-FEM) is used to solve the problem of a thin-walled structure deformation, such as a stiffened panel. The problem of the continuous conjugation of the membrane function from H1 and the deflection ...
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Lamb Wave Analysis in Anisotropic Multilayer Piezoelectric-piezomagnetic Material
(Shahid Chamran University of Ahvaz, 2022-04-01)The dynamic response of an anisotropic multilayer magneto-electro-elastic (MEE) plate due to an external excitation is investigated in this work, using the stiffness matrix approach. A parametric study is performed by ...
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A Stress Tensor-based Failure Criterion for Ordinary State-based Peridynamic Models
(Shahid Chamran University of Ahvaz, 2022-04-01)Peridynamics is a recent nonlocal theory of continuum mechanics that is suitable to describe fracture problems in solid mechanics. In this paper, a new failure criterion based on the stress field is developed by adopting ...
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A Modified Couple Stress-Based Model for the Nonlinear Vibrational Analysis of Nano-Disks Using Multiple Scales Method
(Shahid Chamran University of Ahvaz, 2022-04-01)In this article, the nonlinear vibrational behavior of a nano-disk was analyzed using the multiple scales method (MSM). The modified couple stress theory was used to consider the small-scale effect via the application of ...
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Stability Analysis of Casson Nanofluid Flow over an Extending/Contracting Wedge and Stagnation Point
(Shahid Chamran University of Ahvaz, 2022-04-01)This numerical study is conducted to scrutinize the dual solutions and stability analysis of the flow of Casson nanofluid past a permeable extending/contracting wedge and stagnation point. Momentum, heat and mass transfer ...
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Metal and Metallic Oxide Nanofluid over a Shrinking Surface with Thermal Radiation and Heat Generation/Absorption
(Shahid Chamran University of Ahvaz, 2022-04-01)In transport as well as manufacturing industries, the two basic aspects are heating and cooling. The use of metal or metallic oxide nanofluids has an effective cooling technique than that of conventional fluids. Therefore, ...
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Chaos Control in Gear Transmission System using GPC and SMC Controllers
(Shahid Chamran University of Ahvaz, 2022-04-01)Chaos is a phenomenon that occurs in some non-linear systems. Therefore, the output of the system will be heavily dependent on the initial conditions. Since the main characteristic of the chaos is an abnormal behavior of ...
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Haar Wavelet Method for Solving High-Order Differential Equations with Multi-Point Boundary Conditions
(Shahid Chamran University of Ahvaz, 2022-04-01)In This paper, the developed Haar wavelet method for solving boundary value problems is described. As known, the orthogonal Haar basis functions are applied widely for solving initial value problems, but In this study, the ...
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Scattering and Backscattering Study of Mechanical Plane Wave in Composite Materials Plates (Earth model 1066B and LiNbO3)
(Shahid Chamran University of Ahvaz, 2022-04-01)Reflection and refraction phenomenon pattern of elastic plane wave at the interface between anisotropic monoclinic elastic half-space and isotropic elastic half-spaces is studied. Closed-form expression for phase velocity ...
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Experimental and Finite Element Study to Determine the Mechanical Properties and Bond Between Repair Mortars and Concrete Substrates
(Shahid Chamran University of Ahvaz, 2022-04-01)The separation between repair mortars and the concrete substrate is one of the serious problems in repairing concrete structures. One of the main causes of this separation is the lack of proper curing and, consequently, ...
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Theoretical and Experimental Investigation on Mechanical Behavior of Aluminum to Aluminum Tubular Bonded Lap Joint under Pure Torsion and a Finite Element Comparison with Hybrid Rivet/Bonded Joint
(Shahid Chamran University of Ahvaz, 2022-04-01)The combination of mechanical and bonded joints creates a new connection type, called hybrid joint which has the benefits of both mechanical and bonded joints. In this research, the mechanical behavior of the tubular bonded ...
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Computational Fluid Dynamic Analysis of Amphibious Unmanned Aerial Vehicle
(Shahid Chamran University of Ahvaz, 2022-04-01)Unmanned Aerial Vehicles (UAVs) are becoming popular due to its versatile maneuvering and high pay load carrying capabilities. Military, navy and coastal guard makes crucial use of the amphibious UAVs which includes the ...
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Mathematical Analysis of Poiseuille Flow of Casson Fluid past Porous Medium
(Shahid Chamran University of Ahvaz, 2022-04-01)In this article, the influence of microstructure in the Casson fluid flow through a porous medium is investigated, by extending the Buckingham-Reiner's one-dimensional model to plane-Poiseuille flow and Hagen-Poiseuille ...
