Volume 7, Issue 3
مرور بر اساس
ارسال های اخیر
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Buckling of Shell Panels Made of Fiberglass and Reinforced with an Orthogonal Grid of Stiffeners
(Shahid Chamran University of Ahvaz, 2021-07-01)The paper presents an approach to the stress-strain and buckling analysis in fiberglass cylindrical and conical panels reinforced from the concave side with an orthogonal grid of stiffeners. A mathematical model of the ...
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A New Quantum-computing-based Algorithm for Robotic Arms and Rigid Bodies’ Orientation
(Shahid Chamran University of Ahvaz, 2021-07-01)Quantum computing model of robotic arm orientation is presented. Spherical and vector coordinates, a homogenous rotation matrix, Pauli gates and quantum rotation operators are used to formulate the orientation model and ...
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Numerical Investigation of Tissue-Temperature Controlled System in Thermal Ablation: A Finite Element Approach
(Shahid Chamran University of Ahvaz, 2021-07-01)In thermal ablation, several techniques of treating infected cell in human tissue are being used by the physicians. Transferring heat to the infected cell is one of them. The purpose of this research is to investigate the ...
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Two-Solid Deposition in Fluid Column using Immersed Boundary-Lattice Boltzmann Method
(Shahid Chamran University of Ahvaz, 2021-07-01)Solid deposition in fluid may involve solids with different density and size and may happen in quiescent fluid or rather in counter flow. We perform a numerical investigation on the role of density-ratios, size-ratio, and ...
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A General Purpose Variational Formulation for Boundary Value Problems of Orders Greater than Two
(Shahid Chamran University of Ahvaz, 2021-07-01)We develop a new general purpose variational formulation, particularly suitable for solving boundary value problems of orders greater than two. The functional related to this variational formulation requires only Η1 regularity ...
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Parametric Optimization of a Cyclogiro Aircraft Design for Efficient Hover with Aeroelastic Considerations
(Shahid Chamran University of Ahvaz, 2021-07-01)A minimization procedure is proposed to orient the design of a vertical take-off and landing drone towards sustainability. The vehicle is a novel cycloidal rotor drone and the principal objective is to yield the best ratio ...
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Weighted Dual Approach to an Equivalent Stiffness-based Load Transfer Model for Jacked Open-ended Pile
(Shahid Chamran University of Ahvaz, 2021-07-01)This paper presents a new equivalent stiffness-based load transfer model for an open-ended pipe pile. The main idea of this model is to replace the sum of unit stiffnesses corresponding with external and internal unit skin ...
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Regularization of the Movement of a Material Point Along a Flat Trajectory: Application to Robotics Problems
(Shahid Chamran University of Ahvaz, 2021-07-01)A control problem of the robot's end-effector movement along a predefined trajectory is considered. The aim is to reduce the work against resistance forces and improve the comfortability of the motion. The integral of ...
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Alternative Integration Approaches in the Weight Function Method for Crack Problems
(Shahid Chamran University of Ahvaz, 2021-07-01)This study proposes two alternative approaches to complement existing integration strategies used in the weight function method for linear elastic crack problems. The first approach is based on an interpolation type ...
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The Dynamics of the Working Body of the Tubular Conveyor with the Chain Drive
(Shahid Chamran University of Ahvaz, 2021-07-01)The theoretical calculations of the dynamics of the conveyor drive chain oscillations for different speeds of bulk material movement as a result of motion internal perturbations have been presented in the article. Resonant ...
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Stress Mode Superposition for a Priori Detection of Highly Stressed Areas: Mode Normalisation and Loading Influence
(Shahid Chamran University of Ahvaz, 2021-07-01)From the economic and technical point of view, the reduction of development periods and required resources represent a considerable benefit. For the reduction of numerical effort and processed data in numerical stress ...
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An Automatic Program of Generation of Equation of Motion and Dynamic Analysis for Multi-body Mechanical System using GNU Octave
(Shahid Chamran University of Ahvaz, 2021-07-01)Multi-body dynamics is used to calculate the physical quantities required for component design, such as calculating the dynamic response of mechanical components and the time history of dynamic loads. Advances in analysis ...
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Finite Element Modelling and Simulation of the Hysteretic Behaviour of Single- and Bi-metal Cantilever Beams using a Modified Non-linear Beta-damping Model
(Shahid Chamran University of Ahvaz, 2021-07-01)This paper explores a novel non-linear hysteresis model obtained from the modification of the conventional Kelvin-Voigt model, to produce a non-viscous hysteretic behaviour that is closer to metal damping. Two case studies ...
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Stability Analysis of Articulated Bus in Straight-ahead Running Manoeuvre
(Shahid Chamran University of Ahvaz, 2021-07-01)A comprehensive study on the stability of a planar linearized single-track model of a two-section pusher articulated bus is presented with the aid of a complete set of stability maps. The two sections of the vehicle model ...
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Variational Principles and Solitary Wave Solutions of Generalized Nonlinear Schrödinger Equation in the Ocean
(Shahid Chamran University of Ahvaz, 2021-07-01)Internal solitary waves are very common physical phenomena in the ocean, which play an important role in the transport of marine matter, momentum and energy. Because the generalized nonlinear Schrödinger equation can well ...
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Numerical Investigation of an Unsteady and Anisotropic Turbulent Flow Downstream a 90° Bend Pipe with and without Ribs
(Shahid Chamran University of Ahvaz, 2021-07-01)In this work, a numerical study of the dynamical behavior of unsteady and anisotropic turbulent flow downstream a 90° bended pipe was presented. For this purpose, comparative computations are carried out employing two flow ...
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Description of Anomalous Behavior of Aluminum Alloys with Hill48 Yield Criterion by Using Different Experimental Inputs and Weight Coefficients
(Shahid Chamran University of Ahvaz, 2021-07-01)The anomalous behavior of aluminum alloys is modeled with quadratic Hill48 yield criterion in this study. An identification method based on minimization of the error function is applied and the effect of the number of ...
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Free Vibration Analysis of Functionally Graded Porous Nano-plates with Different Shapes Resting on Elastic Foundation
(Shahid Chamran University of Ahvaz, 2021-07-01)This paper proposes a finite element method (FEM) based on a nonlocal theory for analyzing the free vibration of the functionally graded porous (FGP) nano-plate with different shapes lying on the elastic foundation (EF). ...
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Nonlinear Multiscale Modelling and Design using Gaussian Processes
(Shahid Chamran University of Ahvaz, 2021-07-01)A method for nonlinear material modeling and design using statistical learning is proposed to assist in the mechanical analysis of structural materials. Conventional computational homogenization schemes are proven to ...
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On the Effect of the End-effector Point Trajectory on the Joint Jerk of the Redundant Manipulators
(Shahid Chamran University of Ahvaz, 2021-07-01)This paper is focused on investigating the joints jerk of industrial serial redundant manipulators with 6 degrees of freedom (6-DOF) under the variation of the end-effector point (EEP) trajectory in the workspace. The EEP ...
