Volume 6, Special Issue
مرور بر اساس
ارسال های اخیر
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On Robust Adaptive PD Control of Robot Manipulators
(Shahid Chamran University of Ahvaz, 2020-12-01)In this study, an adaptive proportional-derivative (PD) control scheme is proposed for trajectory tracking of multi-degree-of-freedom robot manipulators in the presence of model uncertainties and external disturbances whose ...
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Multiobjective Geometric Analysis of Stiffened Plates under Bending through Constructal Design Method
(Shahid Chamran University of Ahvaz, 2020-12-01)Constructal design, finite element method and exhaustive search are applied to analyze different arrangements of steel plates with rectangular or trapezoidal stiffeners. As performance parameters, the maximum deflection ...
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Theoretical Analysis of the Motorcycle Front Brake Heating Process during High Initial Speed Emergency Braking
(Shahid Chamran University of Ahvaz, 2020-12-01)Motorcycles are a common mode of transport. They are used both for a conventional purpose - as a way to cover the distance from A to B, but more and more often they are a way of recreation. The choice of bikes is huge on ...
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Larin Parameterization to Solve the Problem of Analytical Construction of the Optimal Regulator of Oscillatory Systems with Liquid Dampers
(Shahid Chamran University of Ahvaz, 2020-12-01)The problem of the analytical construction of the optimal regulator of oscillatory systems with liquid dampers on the complex plane is considered. Since the fractional derivative is included in the differential equation ...
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Two Modifications of the Homotopy Perturbation Method for Nonlinear Oscillators
(Shahid Chamran University of Ahvaz, 2020-12-01)Nonlinear vibration arises in engineering and physics, and the periodic motion of these nonlinear oscillatory systems have rich dynamics. An estimation of amplitude-frequency relationship of a nonlinear oscillator is much ...
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The Permutation Entropy and its Applications on Fire Tests Data
(Shahid Chamran University of Ahvaz, 2020-12-01)Based on the data gained from a full-scale experiment, the order/disorder characteristics of the compartment fire temperatures are analyzed. Among the known permutation/encoding type entropies used to analyze time series, ...
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Pre-drilling Effect on Thermal Friction Drilling of Cast Aluminum Alloy Using Thermo-mechanical Finite Element Analysis
(Shahid Chamran University of Ahvaz, 2020-12-01)Thermal friction drilling is a non-conventional hole making process, which uses a rotating tool to penetrate the workpiece and create a bushing. Friction drilling of brittle cast alloys is likely to result in severe petal ...
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Discretization of the 2D Convection–Diffusion Equation Using Discrete Exterior Calculus
(Shahid Chamran University of Ahvaz, 2020-12-01)While the Discrete Exterior Calculus (DEC) discretization of the diffusive term of the Transport Equation is well understood, the DEC discretization of the convective term, as well as its stabilization, is an ongoing area ...
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An 8-Node Solid-Shell Finite Element based on Assumed Bending Strains and Cell-Based Smoothed Membrane Strains for Static Analysis of Plates and Shells
(Shahid Chamran University of Ahvaz, 2020-12-01)In this paper, a new 8-node solid-shell finite element is proposed. The transverse shear strains and transverse normal strains of the element are separately interpolated and related to the C0-displacement approximation at ...
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Simultaneous Flow of Three Immiscible Fractional Maxwell Fluids with the Clear and Hoamogeneous Porous Cylindrical Domain
(Shahid Chamran University of Ahvaz, 2020-12-01)One-dimensional transient flows of three layers immiscible fractional Maxwell fluids in a cylindrical domain have been investigated in the presence of a porous medium. In the flow, the domain is considered the concentric ...
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A Novel Quadrilateral Element for Dynamic Response of Plate Structures Subjected to Blast Loading
(Shahid Chamran University of Ahvaz, 2020-12-01)We study the dynamic response of plate structures subjected to blast loading. This load is introduced in dynamically excited form over time. Two assumptions are given to ensure the physical properties of dynamic problems. ...
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Analysis of Entropy Generation in Hydromagnetic Micropolar Fluid Flow over an Inclined Nonlinear Permeable Stretching Sheet with Variable Viscosity
(Shahid Chamran University of Ahvaz, 2020-12-01)A numerical analysis is performed on entropy generation in a radiative and dissipative hydromagnetic micropolar fluid prompted by a nonlinearly stretching sheet with the impact of non-uniform heat source/sink, variable ...
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The Brick Thermal Performance Improvement using Phase Change Materials
(Shahid Chamran University of Ahvaz, 2020-12-01)The problems of heat and mass transfer in phase change materials are of great engineering interest. The absorption and storage of energy in the form of latent heat makes it possible to use them in the construction industry ...
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Application of Atangana-Baleanu Fractional Derivative to Carbon Nanotubes Based Non-Newtonian Nanofluid: Applications in Nanotechnology
(Shahid Chamran University of Ahvaz, 2020-12-01)Single and multi-walled carbon nanotubes (SWCNTs & MWCNTs) comprise a large group of nanometer-thin hollow fibrous nanomaterials having physico-chemical characteristics like atomic configuration, length to diameter ratios, ...
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Bending of Functionally Graded Sandwich Nanoplates Resting on Pasternak Foundation under Different Boundary Conditions
(Shahid Chamran University of Ahvaz, 2020-12-01)This article proposes a refined higher order nonlocal strain gradient theory for stresses and deflections of new model of functionally graded (FG) sandwich nanoplates resting on Pasternak elastic foundation. Material ...
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Analysis of a Jet Pump Performance under Different Primary Nozzle Positions and Inlet Pressures using two Approaches: One Dimensional Analytical Model and Three Dimensional CFD Simulations
(Shahid Chamran University of Ahvaz, 2020-12-01)A jet pump operates under the Venturi effect, where a fluid enters through a primary nozzle and, when passing through a convergent-divergent nozzle, it reaches supersonic conditions, originating a vacuum pressure in a ...
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Modified Variational Iteration Technique for the Numerical Solution of Fifth Order KdV-type Equations
(Shahid Chamran University of Ahvaz, 2020-12-01)In this article, a simple and new algorithm is proposed, namely the modified variational iteration algorithm-I (mVIA-I), for obtaining numerical solutions to different types of fifth-order Korteweg de-Vries (KdV) equations. ...
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Effect of Two Baffles on MHD Natural Convection in U-Shape Superposed by Solid Nanoparticle having Different Shapes
(Shahid Chamran University of Ahvaz, 2020-12-01)In this paper, numerical Galerkin Finite Element Method (GFEM) applies for natural convection heat transfer of U-shaped cavity filled by Fe3O4-water nanofluid under the magnetic field and including two baffles. The above ...
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A Radial Basis Function Collocation Method for Space-dependent Inverse Heat Problems
(Shahid Chamran University of Ahvaz, 2020-12-01)In this study, a radial basis function collocation method (RBFCM) is proposed for the numerical treatment of inverse space-wise dependent heat source problems. Multiquadric radial basis function is applied for spatial ...
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A Simple Approach to Volterra-Fredholm Integral Equations
(Shahid Chamran University of Ahvaz, 2020-12-01)This paper suggests a simple analytical method for Volterra-Fredholm integral equations, the solution process is similar to that by variational-based analytical method, e.g., Ritz method, however, the method requires no ...
