بی مایند
Transfiguration of Random Auxeticity of Programmable Metamaterial: A Kirigami
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
This paper presents a comprehensive investigation into the auxetic behavior of a mechanical metamaterial inspired by a Kiri-gami structure. Through an integrated approach involving finite element analysis (FEA), and Monte Carlo (MC) simulations, the study explores the mechanical response of the meta...
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Modeling Dry Friction in Multibody Mechanical Systems and Its Applications to
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
This paper presents a comprehensive analysis of dry friction modeling for conducting reliable computer simulations in the MATLAB and SIMULINK environments. In particular, this investigation highlights practical issues relevant to studying underactuated multibody systems and implementing control stra...
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Magneto-Dependent Vibrational Responses of Multi-Directional Functionally Graded
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
The vibrational frequency characteristics of a shallow shell with an integrated magnetostrictive face sheet and a core made of three-phase multi-directional functionally graded materials (FGM) are discussed in the present study. Properties of the materials are varied along axes of the structure grad...
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Mathematical Modeling and Sensitivity Analysis of Enzymatic Biofuel Cells with
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
The mathematical model in this study advances prior research on enzymatic biofuel cells by applying the Rajendran–Joy method, which enables approximate analytical solutions of nonlinear reaction–diffusion equations incorporating Michaelis–Menten-type enzyme kinetics. Unlike many earlier models that ...
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Exploring Forced Spring-Pendulum Dynamics: From Mathematical Analysis to Chaotic
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
This article examines the vibrational movement of a system with two degrees-of-freedom (2DOF). It is represented by a spring pendulum (SP) co ected to an oscillating support in the presence of a moment and exte al harmonic forces. The system's gove ing equations are formulated using Lagrange's equat...
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Steady-State Oscillations of a Satellite with Passive Attitude Control System in
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
In this paper, an artificial Earth satellite with an electrodynamic attitude control system is considered. Satellite attitude stabilization in the magneto-Lorentz coordinate system is studied. The problem of the analytical construction of the periodic steady-state oscillations of the satellite in th...
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State Space Approach to Characterize Rayleigh Waves in a Nonlocal Thermoelastic
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
The paper deals with the propagation of Rayleigh waves in a nonlocal thermoelastic isotropic layer that is lying over a nonlocal thermoelastic isotropic half-space within the framework of Eringen's nonlocal elasticity in the three-phase-lag model with voids present. A vector matrix differential equa...
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On the Operator Sturm-Liouville Problem with Unbounded Operator Coefficients in
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
In this study, we carry out the spectral analysis of operators generated by the Sturm-Liouville equation and boundary conditions, where both contain unbounded operator coefficients and a spectral parameter. Such problems model many processes in classical and quantum mechanics as well as in mechanica...
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Damping-Based Attitude Control of a Gyrostatic Satellite in Resistive Media
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
The orientation of a satellite that contains a passive, inte al mass damper about a stationary point is studied. The satellite is moving in a resistive medium and influenced by gyrostatic torque (GT). The nonlinear gove ing equations of motion (EOMs) for such a case are derived. The parameterized fe...
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Sensitivity Analysis for Elastic Hysteresis Damping in the Time Domain and for
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
Document Type : Research PaperPublisher’s Note Shahid Chamran University of Ahvaz remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Asghari,H , Melnikov,A , Farrokhabadi,A , Spitas,C and Merodio,J . (2026). Sensitivity Analysis for Elastic Hystere...
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Structural Integrity Assessment of a Long-Range Artillery Projectile Body via
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
Long-range artillery projectiles can feature a hybrid design that integrates a base bleed unit and a solid rocket motor, offering substantial improvements in ballistic performance. These improvements are accompanied by significant increases in the launch stresses experienced by the projectile body. ...
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Effects of Dimples as Vortex Cavities on the Aerodynamic Performance of Darrieus
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
This paper investigates the aerodynamic performance enhancement of a Straight-Bladed Vertical Axis Wind Turbine (VAWT) through dimple optimization. This study employs Orthogonal Experimental Design (OED), a classical Design of Experiments (DoE) methodology, to systematically analyze dimple parameter...
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Finite Element Analysis of MHD Thermal Management in a Ventilated Cavity with
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
Thermal management of ventilated cavities is one of the most significant challenges in the design of microfluidic heat sinks, electronic cooling systems, and medical diagnostics systems. The objective of this study is to examine the thermal and fluid dynamic response of a ventilated cavity with two ...
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Mechanical Stability of SiC/C Double- and Triple-Walled Nanotubes under
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
This study presents a comprehensive finite element (FE) analysis of the critical compressive buckling forces in concentric silicon carbide (SiC) and carbon (C) multi-walled nanotubes (MWNTs), focusing on their relevance to high-performance battery electrode applications. The analysis compares double...
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Machine Learning-Enhanced Simulation of Maxwell Nanofluid Flow: A Bayesian
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
This study examines the Maxwell nanofluid's movement along an inclined plate, incorporating couple stress and variable viscosity effects via a machine lea ing approach. Key i ovations include: (1) a hybrid numerical-ML framework using MATLAB's bvp4c and Bayesian Neural Networks (BNN) for uncertainty...
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Influence of Wall Compliance on Flow Dynamics in Stenosed Channels: An Immersed
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
Understanding the hemodynamics of stenosed arteries is essential for evaluating cardiovascular function and informing clinical interventions. This study investigates pulsatile flow through two-sided collapsible cha els simulating arterial stenosis using a fluid–structure interaction (FSI) framework....
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Practice-Focused Evaluation of Paint and Coating Techniques for DIC-Based
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
This study addresses a key prerequisite for applying digital image correlation (DIC) to quantify surface deformations on biological skin: selecting paints and surface preparation techniques that produce reliable speckle patte s. The goal was to identify practical, skin-safe methods that combine high...
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Effect of Initial Conditions on the Behavior of Two-Electrode MEMS with Variable
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
The influence of initial conditions on the behavior of two-electrode microelectromechanical systems (MEMS) having parallel-plate and comb structures with variable interelectrode gap is studied and analyzed here within a nonlinear approach. It has been revealed that the two-electrode MEMS operation i...
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Surface Tension Modeling using the Axisymmetric Contact Smoothed Particle
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
This article demonstrates the possibilities of computer simulation of capillary phenomena using the axisymmetric contact smoothed particle hydrodynamics (CSPH) method. The conservation accuracy of total momentum and total energy is important in modeling of many physical problems, including capillary...
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Adaptive Sliding Mode Control for Robust Trajectory Tracking of Car-Like Mobile
◷ تاریخ انتشار: 1405/6/21 | ساعت: 16:50
This study proposes an Adaptive Nonsingular Fast Terminal Sliding Mode Control (Adaptive-NFTSMC) control method for four-wheeled Car-Like Mobile Robots (CLMRs) to enhance trajectory-tracking performance. The controller extends the Nonsingular Fast Terminal Sliding Mode Control (NFTSMC) technique wit...
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