-
3121
Comparing the Velocity Spectrum Caused by the Presence of Circular Urban Subway Tunnels With Free-Field Conditions
Published 2024-01-01“…Based on the soil–tunnel system’s period, the spectrum velocity graph was produced by averaging and squaring the standard deviation of the highest velocity for every frequency. Ansys finite element software and Plaxis2D were used in this study. …”
Get full text
Article -
3122
Study on Model of Penetration into Thick Metallic Targets with Finite Planar Sizes by Long Rods
Published 2021-01-01“…Meanwhile, the numerical simulation is performed using the ANSYS/LS-DYNA finite element code to investigate the variations in residual projectile velocity, length, and mass abrasion. …”
Get full text
Article -
3123
ANALYSIS OF INFLUENCE OF CYCLOID GEAR HOLE STRUCTURE ON THE VIBRATION CHARACTERISTIC OF CYCLOIDAL GEAR (MT)
Published 2023-01-01“…Taking the comprehensive meshing stiffness as elastic constraint condition in finite element software, the dynamics harmonic resonance analysis of cycloid gear was carried out. …”
Get full text
Article -
3124
Long-Term Vibration Monitoring of the Effects of Temperature and Humidity on PC Girders with and without Fly Ash considering ASR Deterioration
Published 2017-01-01“…No apparent variation in the mode shapes could be identified. A finite element model was proposed for numerical verification, the results of which were in good agreement with the measured changes in the natural frequencies. …”
Get full text
Article -
3125
Study on the Dynamic Response of Composite Box Girder Bridges with Corrugated Steel Webs
Published 2023-01-01“…To more accurately consider the dynamic response of composite box girder bridges with corrugated steel webs under the effect of live loads, based on the theory of vehicle-bridge coupled vibration, a refined finite element model of vehicle-bridge coupled vibration analysis for composite box girders was established. …”
Get full text
Article -
3126
Performance Optimization of Piled Raft Foundations in Layered Soil under Uniform Vertical Loading Using Plaxis 3D
Published 2023-01-01“…In this study, the effects of raft thickness, number of piles, pile length, spacing of piles, and pile diameter on the response of piled-raft foundations were investigated using the finite element-based program Plaxis 3D for layered soils (medium to very stiff high plastic silty clay and medium to very dense silty sand soil) subjected to uniform vertical loading. …”
Get full text
Article -
3127
Study on Preload of Bolted Connections in Pitch Bearing Based on Vibration Modal Analysis
Published 2023-01-01“…Hammer modal tests are conducted under various preloading forces. By combining finite element modal analysis, the correspondence between preloading changes and the bending frequencies and modes of the bolted connection is obtained. …”
Get full text
Article -
3128
Analysis of Slotted Tooth Switched Reluctance Motors for Electric Vehicle Applications
Published 2024-01-01“…The design parameters of the three models are the same and carried out by finite element tools (FETs) to obtain the magnetic characteristics, and the static analysis of the three models is compared. …”
Get full text
Article -
3129
Thermo-mechanical Coupling Simulation Analysis of Cycloid Gear Multi-tooth Form Grinding
Published 2020-04-01“…The cycloid gear multi-tooth form grinding is a gear finishing process,which can finish the processing of three tooth grooves at same time.In the process of high-speed grinding,high temperature will arise on the gear surface instantaneously,which may cause tooth surface burn.The temperature gradient formed by grinding temperature field will cause residual stress on the tooth surface,and the metallographic structure of cycloid gear tooth surface will change,affecting the grinding accuracy of the gear.The finite element method is used to simulate the temperature field of cycloid gear multi-tooth form grinding,and then the thermo-mechanical coupling analysis method is used to obtain the numerical simulation nephogram of the temperature field and thermal stress of cycloid gear form grinding.Through the analysis of the main stress of the grinding area,it can be seen that the stress is mainly concentrated at the grinding center near the root of the tooth,and the grinding area presents hot-pressing stress.In the ground area,the hot-pressing stress is converted into thermal tensile stress and gradually forms residual tensile stress,and the node stress also changes correspondingly with the change of grinding process parameters.The conclusion has certain research significance for predicting the distribution of temperature and thermal stress field during multi-tooth form grinding and reasonably selecting grinding process parameters.…”
Get full text
Article -
3130
Fully Discrete Local Discontinuous Galerkin Approximation for Time-Space Fractional Subdiffusion/Superdiffusion Equations
Published 2017-01-01“…., backward Euler difference or second-order central difference)/local discontinuous Galerkin finite element mixed method to construct and analyze a kind of efficient, accurate, flexible, numerical schemes for approximately solving time-space fractional subdiffusion/superdiffusion equations. …”
Get full text
Article -
3131
Analysis of Air Gap Magnetic Field Distribution and Torque of Axial-flux Solid Magnetic Couplers
Published 2024-01-01“…Then, the distribution of 3D air gap magnetic field, eddy current and the influence of different working parameters on the characteristics of the torque are obtained by the finite element simulation software. Finally, a measure system of three-dimensional magnetic field and the magnetic drive experimental platform are built to measure the 3D air gap magnetic field and the torque. …”
Get full text
Article -
3132
Behavior of Zr�1Nb alloy in coarse- and ultrafine-grain states under laser-induced shock wave loading
Published 2023-10-01“…Numerical simulation of the process under study has been carried out using statistically based nonlinear model of solid with defects and finite element method to describe the deformation behavior and fracture of the material under shock-wave loading. …”
Get full text
Article -
3133
Contact Characteristics Analysis of the Internal Meshing Gear Transmission Pair with Double Contact Points
Published 2023-09-01“…The contact ellipse area of tooth surfaces of the gear pair with double contact points is solved by the numerical analysis method, and the influences of the design and tooth profiles parameters on the contact ellipse are discussed. Using the finite element analysis method, the contact ellipse area and tooth surface contact stress of the internal meshing gear pair with single contact point and double contact points are compared. …”
Get full text
Article -
3134
Induced Unbalance as a Method for Improving the Dynamic Stability of High-Speed Turbochargers
Published 2011-01-01“…This study presents a new method for improving the dynamic stability by inducing the turbocharger rotor unbalance in order to suppress the subsynchronous vibration. The finite-element model of the turbocharger with floating-ring bearings is numerically solved for the nonlinear time-transient response. …”
Get full text
Article -
3135
IMPROVEMENT ALGORITHM OF TIME-VARYING MESHING STIFFNESS OF HELICAL GEAR AND ANALYSIS OF INFLUENCING FACTORS
Published 2024-04-01“…This method considered the parameter equation of the transition curve of the real tooth root, corrected the integral interval of the involute tooth profile, and compared with the finite element method to verify the validity of the algorithm and reduce the calculation error of the time-varying mesh stiffness. …”
Get full text
Article -
3136
Meshing Stiffness Calculation of Spur Bevel Gears Considering the Tooth Pair Coupling
Published 2023-12-01“…Finally, the accuracy and efficiency of the proposed method are verified by comparing with the finite element calculation results.…”
Get full text
Article -
3137
Effect of Variable Thermal Conductivity on the Generalized Thermoelasticity Problems in a Fiber-Reinforced Anisotropic Half-Space
Published 2019-01-01“…A fiber-reinforced anisotropic half-space is selected as the research model, and a region of its surface is subjected to a transient thermal shock. The time-domain finite element method is applied to analyze the nonlinear problem and derives the governing equations. …”
Get full text
Article -
3138
FATIGUE LIFE ANALYSIS OF FILLET WELDS OF TRANSFORMER OIL TANK WITH WELDING DEFECTS (MT)
Published 2023-01-01“…In order to analyze the effect of fillet weld defects on the fatigue life of the transformer tank, a finite element model of the transformer tank is established. …”
Get full text
Article -
3139
Research on the Low Frequency Broadband Piezoelectric-Magnetostrictive Hybrid Transducer
Published 2016-01-01“…Through building the equivalent circuit model and finite element model, the performances of transducer will be predicted. …”
Get full text
Article -
3140
Modeling and Contact Analysis of Internal Meshing Nutation Spiral Bevel Gear with Different Tooth Profiles based on General Tooth Surface Model
Published 2020-09-01“…The load contact analysis of spiral bevel gears with high and low power and different tooth profiles is carried out by using the finite element software. The results show that the load has a great influence on the load contact characteristics of involute spiral bevel gear. …”
Get full text
Article