FINITE ELEMENT ANALYTICAL METHOD FOR NUMERICAL CONTROL MACHINE TOOL STRUCTURE by HU DongFang, ZHANG WenBo

“…With comparing the result of finite element methods to the field test,the comparative result shows this analytical method that consider the assembly relationship between every parts can ensure the method feasible and reliable.…”
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Three-Direction Type of Diffuser-Shaped Vortex Generator Development for the Wind Solar Tower by Anan Sudsanguan, Amnart Boonloi, Withada Jedsadaratanachai

“…This study employed finite element methods and numerical models to validate the results alongside physical experiments. …”
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Prediction of Chloride Diffusion in Concrete Structure Using Meshless Methods by Ling Yao, Xiaolu Li, Ling Zhang, Lingling Zhang

“…The numerical simulation methods at present mainly involve finite element methods (FEM), which are based on mesh generation. …”
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Mold Strength Analysis of Press Machine Composite Brake Using FEM Method on Train Brakes by Andhika Muhammad Kasyafa, Muhamad Juan Raffindo, Nuha Desi Anggraeni

“…This study was conducted to find out how strong the mold of the composite brake press machine is if given the maximum load by hydraulics, this study also analyzes the mold of the press machine which plays an important role in the manufacture of composite brake linings using the Finite Element Methods (FEM). Therefore, the mold of the press must have sturdy characteristics and can withstand a lot of loads so that the structure will not deform while the process is in progress. …”
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Finte element modeling of the behavior of polymethyl-methacrylate (PMMA) during high pressure torsion process. by Ahmed Drai, Benaoumeur Aour, Naima Belayachi, Abderrahim Talha, Noureddine Benseddiq

“…Then, the distributions of the effective plastic strain, the equivalent plastic strain rate and the hydrostatic stress were analyzed using finite elements method. Recommendations on process conditions were proclaimed at the end of this work according to the obtained numerical results.…”
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MONOLITHIC PURE CENTER PIEZOELECTRIC ROTARY PLATFORM WITHOUT ACTUATOR REDUNDANCY by WU YuXi, YANG YiLing, WU GaoHua, DU HuiLin, WEI YanDing

“…In order to achieve high⁃precision and pure⁃center rotation motion in micro/nanomanipulation tasks,a monolithic pure⁃center rotation platform was designed using two⁃stage compliant amplification mechanisms and a single piezoelectric actuator.Compared with other platforms,the designed rotation platform exhibited the merits of no actuator redundancy,high natural frequency,large rotation angle,and compact structure.The static and dynamic models were established by combining the pseudo⁃rigid body and finite element methods.Also,the output angle,input stiffness,output stiffness,and natural frequency of the rotation platform were simulated by Ansys software.Finally,an experimental test system was built,and the performance of the platform was tested through several experiments.Also,the feedforward control was used to compensate for the piezoelectric hysteresis.The experimental results show that the rotation angle is 16.8 mrad,the natural frequency is 527.3 Hz,and the resolution is 0.3μrad.Meanwhile,the hysteresis nonlinearity is compensated effectively using feedforward control.Thus,the platform is capable the high precision center rotation operation.…”
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Circular thin plates buckling analysis with HRPIM method by Baid Sokayna, Hilali Youssef, Mesmoudi Saïd, Bourihane Oussama

“…The critical buckling loads have been calculated for different values of h/R ratio and compared with Finite Elements Method to illustrate the efficiency, robustness and accuracy of this approach across various boundary conditions.…”
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Unstructured Grids and the Multigroup Neutron Diffusion Equation by German Theler

“…A simple two-dimensional homogeneous circular reactor is solved using a coarse unstructured grid in order to illustrate some basic differences between the finite volumes and the finite elements method. Also, the classic 2D IAEA PWR benchmark problem is solved for eighty combinations of symmetries, meshing algorithms, basic geometric entities, discretization schemes, and characteristic grid lengths, giving even more insight into the peculiarities that arise when solving the neutron diffusion equation using unstructured grids.…”
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Random Vibration Analysis of Coupled Three-Dimensional Maglev Vehicle-Bridge System by Wei Liu, Wenhua Guo

“…The equation of motion of a real three-span space continuous girder bridge is established by using finite element methods. A separated iteration method based on the precise integration method and the Newmark method is introduced to solve the state-space equation for the maglev vehicle and the equation of motion for the bridge. …”
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Design and Simulation of an Antenna-Coupled Microbolometer at 30 THz by Angel Colin, Eduardo Pérez-Tijerina, Francisco Solis-Pomar

“…The device has been simulated by means of the commercial electromagnetic software (HFSS), which is based on the finite elements method. The predicted values for the figures of merit of this microbolometer are as follows: τ=5.8 ns, Rv=5.3×103 V/W, and D⁎ = 2.07×1010 cmHz/W, respectively.…”
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Simulation Analysis of Air Flow and Turbulence Statistics in a Rib Grit Roughened Duct by I. I. Vogiatzis, A. C. Denizopoulou, G. K. Ntinas, V. P. Fragos

“…In this paper we investigate the two-dimensional, turbulent, unsteady flow around rectangular ribs of variable aspect ratios by directly solving the transient Navier-Stokes and continuity equations using the finite elements method. Flow characteristics and several aspects of turbulent flow are presented and discussed including velocity components and statistics of turbulence. …”
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Control of local stress in semiconductor silicon structures by S. F. Sianko, V. A. Zelenin

“…This method is based on consequent measurements of intensity of Makyoh image elements of the structure along the chosen direction followed by calculation of micro-geometrical profile and curvature radius.The estimation of residual stress of topological elements Si–SiO system was carried out by means of calculation of interference pictures obtained in a film-substrate gap after separating of film edge from substrate along open window perimeter.Analytical expressions relating semiconductor structure image characteristics with their deformation were developed by means of finite elements method. The expressions allow determining of local residual stress of chosen area of the structure. …”
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Upper-Bound Finite Element Adaptive Analysis of Plane Strain Heading in Soil with a Soft Upper Layer and Hard Lower Layer by Jian Zhang, Li Ding, Yu Liang, Jingyao Zong, Zhenya Li

“…This paper investigates the stability of a rectangular tunnel face affected by surcharge loading in soil with a soft upper layer and hard lower layer using upper-bound finite element methods with a plastic-dissipation-based mesh adaptive strategy (UBFEM-PDMA). …”
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An adaptive least-squares algorithm for the elliptic Monge–Ampère equation by Caboussat, Alexandre, Gourzoulidis, Dimitrios, Picasso, Marco

“…The approximation relies on mixed low order finite element methods with regularization techniques. In order to account for data singularities in non-smooth cases, we introduce an adaptive mesh refinement technique. …”
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Assessment of the Stability of an Unlined Rectangular Tunnel with an Overload on the Ground Surface by Jian Zhang, Zhibin Hang, Tugen Feng, Feng Yang

“…This paper uses upper-bound finite element methods to assess the stability of an unlined rectangular tunnel in cohesive-frictional soils with an overload acting on the ground surface. …”
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FATIGUE LIFE ANALYSIS AND OPTIMIZATION DESIGN OF VEHICLE HORIZONTAL STABILIZER BAR by XU QiYing, ZHONG ZiFeng

“…Aiming at solving a horizontal stabilizer bar fracture failure, firstly, the forward horizontal stabilizer assembly model and the front suspension dynamics model were established based finite elements method and rigid flexible coupled multi-body dynamics method, the horizontal stabilizer bar displacement were extracted in limit working condition, so the strength analysis force displacement was 49.5 mm. …”
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Temperature Control Measures and Temperature Stress of Mass Concrete during Construction Period in High-Altitude Regions by Zhenhong Wang, Li Tao, Yi Liu, Jiang Yunhui

“…Therefore, this study explores the temperature control standards, as well as temperature control and crack prevention measures, for concrete in high-altitude regions using three-dimensional finite element methods and based on the concrete gravity dam in Tibet in combination with the characteristics of material properties that are disadvantageous to temperature control and crack prevention. …”
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Optimizing design and stability of open pit slopes in Tolay coal mine, Ethiopia by Eyerusalem Alemayehu, Endalu Tadele Chala, Nagessa Zerihun Jilo, Tiyasha Tiyasha, Belachew Moges

“…Stability was evaluated using Limit Equilibrium Methods (LEM) with Slide software and Finite Element Methods (FEM) using Phase2. Geological surveys revealed mudstone, siltstone, and claystone layers up to 39 m deep, with a 10 m coal seam. …”
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Analisis Kegagalan Pada Roda Gigi Miring Intermediate Gear 2 Pada Gear Box Untuk Roller Press Milling Machine by Andri Anto, Dedison Gasni

“…Stress analysis has been conducted by using Niemann methods and Lewis equation. Finite element methods also have been conducted by using commercial software where the stress was obtained on the root of gear by modeling with pitting, without pitting, and matting. …”
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An Overview of Experiments and Numerical Simulations on Airflow and Aerosols Deposition in Human Airways and the Role of Bioaerosol Motion in COVID-19 Transmission by Justus Kavita Mutuku, Wen-Che Hou, Wei-Hsin Chen

“…Herein, in-depth information on in vitro experiments and state-of-the-art review on various computational fluid dynamics (CFD) applications and finite element methods on airflow and aerosol motion in both healthy and obstructed human airways are provided. …”
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