Search Results - "finite element method"

NUMERICAL METHOD FOR ESTIMATION OF TENSILE LOAD IN TIE-RODS by Kseniia Riabova, Luca Collini, Rinaldo Garziera

“…The algorithm used for calculation involves a solution of a functional minimization problem, where the tensile load and the stiffness of elastic foundation at the edges are used as optimization parameters and the error function, which describes the deviation between the frequencies measured and those calculated using finite element method, is minimized. Qualitative analysis of the results showed a significant reduction of the error compared to models with different boundary conditions. …”
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The Effect On The Leakage Flow Along The Horizontal Drainage, Power, Drifted And Hydraulic Gradient In Homogeneous Earth Dam By Numerical Simulation by Ali Mahmud, Mohammad Badakhshan, Abuzar Seifi

“…In addition, the leakage from the body and the maximum output gradient at the dam was calculated using the Seep / W software based on finite element method. The results of this study showed that the increase in the length of the horizontal drain is proportional to the discharge leakage from the dam and the photo ratio is under pressure. …”
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Modeling of the frequency response function and its evaluation during boring by Максим Шихалєєв, Вадим Медведєв

“… Finite element method of simulating frequency response function (FRF) for boring tool in LS-Dyna solver is investigated in this work. …”
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Verification of mathematical model of transonic axial compressor stage by A. S. Zolotukhin, L. N. Marenina, A. A. Drozdov, E. Yu. Zolotukhina, A. M. Yablokov

“…The obtained model can be used for further optimization or other calculations using the finite element method. …”
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Wave Propagation in a LRPC Composite Double Panel Structure with Periodically Attached Pillars and Etched Holes by Denghui QIAN

“…In order to reveal the bandgap properties of structure theoretically, the band structures, displacement fields of eigenmodes and transmission power spectrums of corresponding 8 × 8 finite structure are calculated and displayed by using finite element method (FEM). Numerical results and further analysis demonstrate that if the excitation and response points are picked on different sides of the structure, a wide band gap with low starting frequency is opened, which can be treated as the coupling between dominant vibrations of pillars and plate modes. …”
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Study on the propagation law of hydraulic fractures in heterogeneous permeability reservoirs. by Linhao Zou, Yinao Su, Xingsheng Xu, Wei Li, Huan Zhao, Mingxiu Zhang, Shengjie Jiao

“…To this end, this study establishes a 3D multilayered heterogeneous reservoir model using the finite element method to analyze fracture mechanisms. The impacts of permeability heterogeneous, injection rate, and fracturing fluid viscosity on fracture morphology are systematically investigated, and the elasticity coefficient method was used to evaluate the influence weights of each parameter.The main conclusions are as follows: (1) Permeability distribution is the core factor controlling the fracture propagation direction, with HPL dominating the extension path while MPL and LPL show limited efficiency. (2) An increase in the number of permeability layers inhibits the overall expansion of cracks, and the shape of the cracks gradually changes to rectangular. (3) Higher injection rates significantly expand fracture area, whereas fracturing fluid viscosity ≥50 mPa·s stabilizes fracture morphology. (4) The elastic coefficient method identifies injection rate, permeability heterogeneous, and fracturing fluid viscosity as the key control parameters in order. …”
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Dynamic Analysis of an Offshore Knuckle-Boom Crane Under Different Load Applications Laws by Ivan Tomasi, Luigi Solazzi

“…The following steps were taken to perform numerical simulations using the finite-element method (FEM): Definition of the model’s geometry, materials, and boundary conditions. …”
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Discretization of the Caputo time-fractional advection-diffusion problems with certain wavelet basis function by Daniel Iweobodo, Godspower Abanum, Ozioma Ogoegbulem, Napoleon Ochonogor, Ignatius Njoseh

“…In order to successfully achieve our result, our methodology inculcated the Caputo fractional derivatives, time fractional advection-diffusion equations (TFADE), Wavelet, IMNW, and Galerkin finite element method. After a successful implementation of the time discretization, an implicit form of TFADE was obtained, followed by the implementation of the space discretization which generated the variational formulation of the equation for easy implementation of the scheme. …”
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Rapid Design of a Coreless Axial Flux Motor Based on the Magnetic Charge Method by Guoqing Zhu, Zhihui Jin, Jian Luo

“…In terms of seeking optimal solutions, the torque obtained through the magnetic charge method (MCM) reached 99.67% of the finite element method (FEM) results. Finally, a prototype was fabricated, and a test platform was constructed based on the optimization results. …”
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Photonic Crystal Fiber Pollution Sensor Based on the Surface Plasmon Resonance Technology by Fatima Fadhil Abbas, Soudad S. Ahmed

“…The sensing characteristics are illustrated using the finite element method. The right hole of the right side of PCF core has been coated with chemically stable gold material to achieve the practical sensing approach. …”
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Inverse Design of a Taper by Scatter Search Metaheuristic by Luana Franca-Vieira, Vitaly F. Rodriguez-Esquerre, Anderson Dourado Sisnando, C. E. Rubio-Mercedes

“…For this purpose, a numerical technique called finite element method (FEM) is used in conjunction with an adapted optimization technique called Scatter Search (SS). …”
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Normal Mode Solutions of Target Strengths of Solid-filled Spherical Shells and Discussion of Influence Parameters by Bing JIA, Jun FAN, Gui-Juan LI, Bin WANG, Yun-Fei CHEN

“…The calculation results of the spherical shell’s acoustic TS are in good agreement with the results of the finite element method (FEM). Based on these normal mode solutions, the influences of parameters such as the material, radius, and thickness of the inner and outer shells on the TS of a solid-filled spherical shell are analyzed. …”
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Integration of Micro/Nano Pressure Sensor for Diabetes Patients Applications by Srinivasa Rao Karumuri, G Sai Lakshmi, Girija Sravani Kondavitee

“…The main aim was on developing micro bridges that could be integrated into the electro-osmotic pressure sensor. Utilizing a Finite Element Method (FEM) tool, the study examined the mechanical properties and response of three micro bridges, considering factors such as non-linearity and sensitivity conditions. …”
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Finite Element Analysis of SAW Sensor with ZnO Substrate for Dichloromethane (DCM) Gas Detection by Mohamed MOUSTAFA, Ghaylen LAOUINI, Tariq ALZOUBI

“…The study is performed based on the finite element method (FEM) using COMSOL Multiphysics software. …”
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Isogeometric Approximation for Dynamics of Infinite String Using Difference Equation Method by Jerzy RAKOWSKI, Przemyslaw WIELENTEJCZYK

“…The research objective is to compare IGA, finite element method (FEM) and exact formulation approaches. …”
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THE LOAD-DISPLACEMENT BEHAVIOUR OF GROUND ANCHORS IN FINE GRAINED SOILS by Juraj Chalmovský, Lumír Míča

“…This paper gives an analysis of the factor of non-uniform distribution of skin friction resulting in a progressive failure of ground anchors. First, the finite element method in combination with a material model involving regularized strain softening is utilized. …”
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Numerical simulations of residual stress and inhomogeneous conductivity effects in CNT-filled resins cured by electric field by R. Matsuzaki, S. Hatori

“…The simulations were based on an unsteady-heat-transfer equation and the cure reaction; the residual stress due to the thermal expansion and cure shrinkage was calculated using a finite element method. In addition, microscope images of actual CNT-filled resins were used for modeling the inhomogeneous electrical conductivity due to CNT aggregates. …”
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Research of the influence of highcarbon steel wire drawing speed on stresses and deformations on wire cross section by Yu. L. Bobarikin, Yu. V. Martyanov

“…The rough drawing speed is chosen as the investigated parameter.The effect of the coarse drawing rate of high-carbon steel wire on the distribution of equivalent residual stresses and strains over the wire cross section is studied by numerical simulation of wire drawing at different speeds by the finite element method. The values of equivalent residual stresses for the selected drawing route along the wire cross-section zones are determined. …”
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Dynamic Properties of Concrete Composite Panels under Eccentric Compression Loading Tests by Max De Castro MAGALHAES, Roberto Marcio da SILVA

“…Second, a ‘hybrid’ model, based on the concepts of modal analysis and the Finite Element Method, was developed in order to obtain the natural frequencies and corresponding normal modes of the composite panels within the frequency range 0–200 Hz. …”
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Effect of structure–ground interaction on shrinkage stresses in foundation reinforced concrete elements by Grosel Jacek, Pakos Wojciech

“…This paper presents a numerical analysis of the shrinkage of reinforced concrete foundations on the ground, known as mat foundations. It presents Finite Element Method (FEM) calculations of a beam and its verification with analytical solutions. …”
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