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3401
Influence of Foundation Rigidity on the Structural Response of Mat Foundation
Published 2021-01-01“…To accomplish the objective of the study, 70 different mats are analyzed using a linearly elastic finite element approach. The variables that are considered in the analysis are the number of bays in each direction, center-to-center column spacing, mat thickness, panel aspect ratio, column cross section dimensions, soil modulus of subgrade reaction, and modulus of elasticity of concrete. …”
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3402
Fatigue Life Assessment of Orthotropic Steel Deck with UHPC Pavement
Published 2017-01-01“…This paper aims at presenting the numerical analysis on the fatigue performance of the orthotropic steel deck using ultrahigh performance concrete (UHPC) overlay as the deck pavement instead of the conventional asphalt concrete pavement. By using finite element method (FEM) model, stress distribution at fatigue sensitive locations under the action of wheel loads is characterized and the obtained stress ranges indicate that the UHPC pavement significantly reduces the magnitude of the stress peak valued. …”
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3403
Simulation of the Electro-Superconducting System Based on the H Equation
Published 2022-01-01“…In order to reduce the levitation energy consumption and increase the levitation air gap, a simulation study of the electrochemistry superconducting magnetic levitation system based on the H equation is proposed. Through finite element simulation, the magnetic field distribution, current distribution, force, and other characteristics of the magnetic suspension system in the superconducting gravimeter are obtained; the relationship between the force of the superconducting ball in the magnetic field and the height of the suspension body and the current of the suspension coil is analyzed; and the penetration rate, the magnetic gradient, penetration depth, and maximum magnetic induction intensity of the superconducting spherical surface of the single-coil electrochemistry superconducting magnetic levitation system are obtained by simulation calculation. …”
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3404
Influence Analysis and Load Reduction Design of Embankment Filling on Overlying Water Conveyance Tunnel
Published 2023-01-01“…Embankment filling will have adverse effects on the structure of the overlying water conveyance tunnel.In order to reduce the impact of embankment filling on the overlying water conveyance tunnel,a load reduction plan was proposed by setting cast-in-place piles on both sides of the tunnel.Finite element analysis was used to simulate the water conveyance tunnel without load reduction of cast-in-place piles and that with load reduction and reinforcement of cast-in-place piles under different pile spacing,pile elastic modulus,and pile row numbers.At typical section facility monitoring points,the top arch and arch waist of the tunnel lining were monitored.The stress and deformation of the connection points between the side wall,bottom plate,and side wall and bottom plate were analyzed,and the sensitivity of pile spacing,pile elastic modulus,and pile row number to the tunnel load reduction effect was analyzed.The results indicate that:① Embankment filling will cause a vertical deformation of 5.45 cm in the top arch of the tunnel lining,and the tensile stress on the concrete at the junction of the side wall and floor will reach 8.34 MPa,exceeding the allowable value of the structural tensile strength.The lining is in an unsafe state.② By setting cast-in-place piles,the adverse effects of embankment filling on the water conveyance tunnel can be effectively reduced,and the safety of the water conveyance tunnel can be improved.③ The load reduction effect of the water conveyance tunnel is significantly correlated with the pile spacing and pile row numbers,while the correlation with the elastic modulus is relatively small.…”
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3405
Dynamic Characteristic Analysis of Asymmetric Helical Gear with a Small Number of Teeth based on LS-DYNA
Published 2017-01-01“…Based on contact- impact dynamics equations,the finite element dynamic contact model of asymmetric helical gear with a small number of teeth is built,the dynamic tooth root bending stress and the dynamic transmission error are investigated under the condition of considering the effects of friction and damping,etc. …”
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3406
CALCULATION OF INDUCTANCE OF THE INTERIOR PERMANENT MAGNET SYNCHRONOUS MOTOR
Published 2017-03-01“…The results obtained with the use of the proposed analytical method and the finite element method are presented in the form of a graph; the calculations that have been obtained by these two methods were compared.…”
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3407
Strengthening of Steel Columns under Load: Torsional-Flexural Buckling
Published 2016-01-01“…The study includes results gained from finite element models of the problem created in ANSYS software. …”
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3408
Improving the Stability of Mining Slopes in Tarcha Coal Mine, Southwestern Ethiopian Deposit Through Geometric Adjustments
Published 2024-01-01“…This study aims to assess and enhance the stability of the selected open-pit coal mine quarries through field and laboratory analyses, supported by the limit equilibrium method (LEM) and the finite element method (FEM). Fieldwork involved detailed measurements of slope geometry and orientation, in situ rock testing, and soil and rock sampling for laboratory analysis. …”
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3409
Seismic Fragility Analysis of the Reinforced Concrete Continuous Bridge Piers Based on Machine Learning and Symbolic Regression Fusion Algorithms
Published 2021-01-01“…Taking the pier of a three-span continuous reinforced concrete hollow slab bridge as an example, a nonlinear finite element model was established for vulnerability analysis. …”
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3410
Low‐cost fabrication of polymer substrate‐based piezoelectric microgenerator with PPE, IDE and ME
Published 2017-03-01“…The harmonic analysis was carried out using finite element method (FEM) tool to examine the effect of the electrodes on the output voltage. …”
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3411
Failure Mechanism and Factor of Safety for Spatially Variable Undrained Soil Slope
Published 2019-01-01“…This paper aims to investigate the differences in factor of safety (FS) and failure mechanism (FM) for spatially variable undrained soil slope between using finite element method (FEM) , finite difference method (FDM), and limit equilibrium method (LEM). …”
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3412
Experimental Study and Numerical Study on Shear Bearing Capacity of Shear Key Joints of Reinforced Concrete Open-Web Sandwich Plates
Published 2021-01-01“…To avoid the current algorithm overestimating the shear capacity of shear key, the restricted condition of shear section is proposed. The finite element analysis (FEA) further verifies that the restricted condition of shear section proposed in this paper is reasonable and necessary.…”
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3413
Numerical Simulation Study on Construction Effect of Top-Down Construction Method of Suspended Diaphragm Wall for Deep and Large Foundation Pit in Complex Stratum
Published 2022-01-01“…By using Midas GTS finite element software, a three-dimensional model of deep and large foundation pit excavation with top-down construction method is established, and the internal force, deformation, and surface settlement of surrounding soil of suspended diaphragm wall with different depths into rock (1 m, 2 m, and 4 m) are analyzed. …”
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3414
Study on Effect of Perforation Orientation on Hydraulic Fracturing of Shale
Published 2022-01-01“…In this paper, starting from the current research status of shale volumetric fracturing, the perforation orientation of volumetric fracturing is numerically simulated by using the finite element software. The following conclusions are drawn: ① when the ground stress conditions are equal, with the increase of perforation angle, the maximum principal stress at the front of perforation decreases gradually; that is, when the perforation is along the horizontal minimum principal stress, the maximum principal stress at the front of perforation is the largest, which is most conducive to fracturing of shale reservoirs. ② When the perforation is along the direction of the horizontal minimum principal stress and the horizontal stress difference is zero, the smaller the horizontal stress, the greater the maximum principal stress at the front of the perforation. …”
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3415
PREDICTION OF MULTIAXIAL LOAD FATIGUE LIFE FOR RUBBER BUSHING
Published 2020-01-01“…It is found that the five damage parameters can be calculated only by outputting the deformation gradient tensor of the dangerous area in the finite element analysis. Based on the fatigue crack initiation theory and the fatigue test data of dumbbell rubber test piece,the life prediction models are established by the above five damage parameters,and the accuracy of the five life prediction models is measured by the goodness of fit value. …”
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3416
Dynamic Response and Parametric Studies of Elliptical Blast-Resistant Door with the Combined Structure for Large Vacuum Explosion Containers
Published 2021-01-01“…This paper introduces a new elliptical blast-resistant door with the combined structure (EBD), mainly welded with an elliptical panel, arc support plate, and triangle support plate. The finite element program AUTODYN was used to calculate the explosion load, and LS-DYNA was used to calculate the blast-resistant door’s dynamic response. …”
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3417
Analysis of Meshing Contact Characteristics of the Gear Transmission System Based on Data Mining Technology
Published 2023-03-01“…Based on the principle of multi-dimensional Gaussian distribution and the finite element model of gear transmission system, the meshing contact characteristic data set of the system is constructed. …”
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3418
STRAIN-RATE EFFECT ON THE STRESS CONCENTRATION IN A 45 STEEL PLATE WITH AN ELLIPTIC HOLE
Published 2020-01-01“…Therefore,based on the Johnson-Cook model,the stress concentration at the hole root of a typical 45 steel plate under dynamic loading is systematically analyzed using finite element method. The results show that the plastic stress concentration factor depends not only on the loading magnitude( strain) but also on the loading speed( strain rate). …”
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3419
RESEARCH ON LOAD FLUCTUATION CHARACTERISTICS OF SUPPORT BEARING RACEWAY FOR SPECIAL VEHICLE LIFT MECHANISM
Published 2020-01-01“…Therefore,a special vehicle lift mechanism transmission system has been regarded as the research object,the three-dimensional model of the main components of the transmission system has been established,and the influences of the bolt design on the load fluctuation characteristics of support bearing raceway of transmission system have been analyzed by the finite element and vibration frequency detection methods. …”
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3420
Fuzzy Sliding Mode Control of Plate Vibrations
Published 2010-01-01“…Test plate is instrumented with a piezoelectric sensor patch and a piezoelectric actuator patch. Finite element method is used to obtain mathematical model of the test plate. …”
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