STUDY ON NONLINEAR VIBRATION CHARACTERISTICS FOR THE ROTOR-ROLLING BEARING SYSTEM WITH CURVIC COUPLINGS (MT) by WANG LongKai, MA PengWei, WANG AiLun, ZHANG HaiBiao, YIN YiJun

“…To study the contact effect of the rotor system with curvic couplings under rolling bearing supports, the combination of 3D finite element and analytical method were used to derive the curvic coupling shaft section stiffness matrix, and the dynamics model of rotor-rolling bearing system was established, which was verified by Ansys. …”
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NUMERICAL SIMULATION STUDY ON COAL AND ROCK CRUSHING OF COAL PLOUGH by HAO ZhiYong, WANG ShuaiLing, CHEN ZhiQiang, YUAN Zhi

“…In order to study the crushing process and its influencing factors of the coal rock ploughing and planing by the plough cutters,the planing process is analyzed by numerical simulation, in view of the fact that coal and rock are heterogeneous media, coal rock images are identified, the three-dimensional model of coal rock is established by image reconstruction method, the accuracy of simulation is increased, it provides a new theory and method for three-dimensional finite element modeling of heterogeneous materials, and obtains more accurate simulation data. …”
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Nonlinear Dynamic Responses of a Rotor-Bearing System with Eccentric Squeeze Film Dampers by Jiaqi Han, Wei Chen, Lulu Liu, Guihuo Luo, Fei Wang

“…In this study, a rotor system tester with and without an eccentric SFD was built, and a simulation model based on the finite element method and fixed interface modal synthesis method was proposed. …”
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Comparative study of thermal performance indicators of five hollow bricks configurations by Alaoui Ahlam, Kadic Muamer, Guenneau Sébastien, Lahsaini Mohammed, Achaoui Younes

“…Five configurations are assessed, namely the case of conventional bricks, the use of aluminum shields, low thermal emissivity coating, extruded polystyrene and air cavity partitioning. Finite element method based analysis in steady-state and transient conditions enabled the assessment of the effects of each technique and their classification according to thermal performance level.…”
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Superior strength-ductility synergy of wire-arc directed energy deposited Mg-Al-Si alloys mediated by sub-rapid solidification by Qifei Han, Yueling Guo, Jinlong Hu, Rui Fu, Yangyu Yan, Changmeng Liu

“…Here we propose to employ wire-arc directed energy deposition (WA-DED) to tune the microstructure and the mechanical property of Mg-Al-Si alloys, on the basis of its sub-rapid solidification effect. According to finite element analysis, WA-DED shows higher cooling rate than conventional casting, reaching 598.3 K/s for Mg-Al-Si alloy, and the lower heat input, the larger cooling rate of WA-DED. …”
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Influence of the ITZ Thickness on the Damage Performance of Recycled Concrete by Fuwei Xu, Bin Tian, Gang Xu

“…The concrete model test method and finite element analysis software were used to numerically simulate common concrete and recycled concrete with ITZ thicknesses of 0.05 mm, 1 mm, 2 mm, 3 mm, and 4 mm. …”
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Parameter Sensitivity Analysis of Natural Frequency of a Two Branch Herringbone Gear Transmission System by Zhang Quanqing, Wang Sanmin, Zhao Chunyang, Ma Yaohui, Ren Hongfei

“…The torsional dynamic model of the branched drive is established, the vibration mode characteristics of the branched drive are verified by finite element analysis, the parameter sensitivity expression under multi-excitation is deduced by the mode method, and it is applied to the stability analysis of the two-branched herringbone gear drive system. …”
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Study on Hot Deformation Behavior of 7085 Aluminum Alloy during Backward Extrusion Process by R. B. Mei, Y. X. Du, L. Bao, X. Y. Zhang, B. Zhang, Z. J. Zhou

“…A numerical simulation on the deformation behavior of 7085 aluminum alloy during the backward extrusion was also performed by finite element method. The results show that dynamic recrystallization occurs in the hot compression of 7085 alloy and the peak stress reaches higher values as the strain rate increases and deformation temperature decreases. …”
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Damage Identification of a Steel Frame Based on Integration of Time Series and Neural Network under Varying Temperatures by Minshui Huang, Wei Zhao, Jianfeng Gu, Yongzhi Lei

“…Thus, two-step ANN models with the inputs of difference in AR coefficients are utilized to compensate the detrimental temperature variations. Finite element (FE) models of a steel-braced frame structure, simulating several damage scenarios with different damage locations and severities at fluctuating temperatures, are used to verify the effectiveness and reliability of this approach. …”
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Studies on the RC Beam Strengthened by Using the Exterior-Wrapping U-Shaped Steel Plate and Its Application by Chunli Zhou, Jinkun Sun, Zhaorong Zeng, Jie Liu

“…With reference to the code for design of strengthening concrete structure, the bearing capacity formula of the RC frame beams strengthened by using the exterior-wrapping U-shaped steel plate is briefly derived. After that, the finite element analysis of the frame beam before and after the reinforcement of the engineering example is carried out through ABAQUS software, and the results of the analysis of the bearing capacity are compared with the calculation results of the theoretical formula. …”
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Analysis of Air Gap Magnetic Field and Torque of the Slotted-type Magnetic Couplers by Yang Chaojun, Ding Yifei, Tai Jiangxi, Zhu Jiwei, Hang Tian, Yang Fan

“…By comparing the results with those obtained by finite element simulation, the accuracy of the theoretical model is verified and the cause of the error is analyzed.…”
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Prediction of Shear Lag Effect in Thin-Walled Single-Box Multicell Box Girder Based on the Modified Warping Displacement Function by Xiayuan Li, Shui Wan, Kongjian Shen, Peng Zhou, Xiao Wang

“…The accuracy and applicability of the proposed method (SL-THY2) are validated for four thin-walled single-box multicell (two- and three-cell) box girders with the results derived from the solid finite element method.…”
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Design and Numerical Analysis of a Novel Rectangular PCF (R-PCF)-Based Biochemical Sensor (BCS) in the THz Regime by Abdullah Al-Mamun Bulbul, Abbas Z. Kouzani, M. A. Parvez Mahmud, Abdullah-Al Nahid

“…The competence of this BCS in detecting analytes is evaluated employing the full-vector finite element method (FEM). Performance metrics prove the competence of this BCS in sensing various analytes that have a refractive index in the range of 1.33–1.48. …”
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STUDY ON THE INFLUENCE OF THE THREE-DIMENSIONAL MORPHOLOGY OF THE GEAR PITTING PITS ON STRESS CONCENTRATION OF TOOTH SURFACE by LI YouHua, CHEN Chao, YANG ShiHao, ZHANG ZhiHong, WANG Jun, LIU ZhongMing

“…In order to study the influence of the three-dimensional appearance of the gear pitting pits on the stress concentration of the tooth surface, the effect of pitting pits with different shapes on stress concentration factor of gear was analyzed by finite element method. By changing the length, width and depth of ellipsoid pitting pits, the influence of different length-width ratio and depth-width ratio on stress concentration factor was analyzed, and the approximate calculation model of stress concentration factor of ellipsoid pitting pits was established. …”
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Modeling of a cracked and repaired Al 2024T3 aircraft plate: effect of the composite patch shape on the repair performance by Mohammed Baghdadi, Boualem Serier, Mokadem Salem, Bouchra Zaoui, Khacem Kaddouri

“…In this work the finite element method was used to analyse the composite patch shape effect of the repair performance. …”
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RIGID-FLEXIBLE COUPLING DYNAMIC STRESS AND FATIGUE ANALYSIS OF DRIVING WHEELS UNDER TYPICAL WORKING CONDITIONS (MT) by YAN BiJuan, ZHANG HeFeng, WANG ZhiXia, KOU BaoFu, WU FengBiao

“…In order to solve the problem that the driving wheel teeth are easy to break in the harsh working environment, this paper used RecurDyn software to establish the virtual prototype model of the driving wheel crawler mechanism with different number of teeth, and used the finite element software WorkBench to make the driving wheel teeth flexible, and established the rigid-flexible coupling model with the driving wheel teeth as the flexible body. …”
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LIFE PREDICTION OF METRO OBSTACLE DETECTOR BASED ON FATIGUE TEST AND FRACTURE SIMULATION by LI XiangJie, YANG GuangWu, XIAO ShouNe, ZHU Tao, YANG Bing

“…The random vibration fatigue strength of the obstacle detector was studied by combining the finite element method and bench vibration test, and the remaining life at the fatigue weak points of the aluminum beam welded joints was predicted. …”
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ANALYSIS OF SIMPLE LIFTING TYPE STEREO PARKING FRAME OF INTELLIGENT MECHANICS by MAO Jun, DONG XianRui, XIE Miao, YAN JiangLong, BAI YaJing

“…First established the mechanical model framework to solve the deformation of frame,and caculated the overturning moment,bearing force,the strength of the frame.Second using finite element analysis software ANSYS-workbench module to the rotary column in the 0°and 90°two condition of the framework for the calculation of mechanical property simulation,in order to obtained the deformation amount,the deformation direction the principal stress and the maximum stress position under the two conditions. …”
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Numerical Study on the Fracture Properties of Concrete Shield Tunnel Lining Segments by Longgang Tian, Xiao Wang, Ziling Cheng

“…Three-dimensional numerical models of shield tunnel lining segments with initial cracks are built using the Symmetric Galerkin Boundary Element Method- (SGBEM-) Finite Element Method (FEM) Alternating Method. The cracking load and ultimate load of the tunnel segments are obtained, and crack propagation under fatigue load is also simulated by employing the Paris Fatigue Law. …”
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A Review of Modeling, Simulation, and Process Qualification of Additively Manufactured Metal Components via the Laser Powder Bed Fusion Method by Emmanuel De Leon, Alex Riensche, Benjamin D. Bevans, Christopher Billings, Zahed Siddique, Yingtao Liu

“…The purpose of this work is to provide a review of the physics of metal AM at the melt pool and part scales, thermomechanical simulation methods, as well as the available commercial software used for finite element analysis and computational fluid dynamics modeling. …”
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