Crack Detection in Plate-Like Structures Using Modal Strain Energy Method considering Various Boundary Conditions by Thanh-Cao Le, Duc-Duy Ho, Thanh-Canh Huynh, Van-Sy Bach

“…In order to overcome the limitation of measuring points, a central difference method is newly employed to compute the partial differential terms in the modal strain energy formula. Finite element analysis is conducted on an aluminum thin plate to obtain the mode shapes before and after the occurrence of damage. …”
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SRM power density improvement utilising rotor conducting screens and DC‐link voltage boosting for EV applications by Aly A. Abdel‐Aziz, Khaled H. Ahmed, Ahmed M. Massoud, Barry W. Williams

“…The boosted voltage provided by the capacitors aids the winding current to rapidly build‐up; thus, increasing the motor base speed, whence power rating. Finite element analysis results confirm the SRM drive's effectiveness in increasing the motor base speed and improving the torque range; hence make the power capability of SRMs to be competitive with an equivalent volume permanent magnet synchronous motor.…”
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Ultrahigh effective mode area photonic crystal fibers with extremely low bending loss for long distance transmission application by Asif Shariar, Mehedi Hasan Milan

“…A full-vectorial finite element method (FEM) approach is considered with perfectly matched layer (PML) boundary for hybrid cladding with fluorine-doped silica holes in the cladding. …”
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STUDY ON THE MECHANISM OF INFLUENCE OF INTERNAL GEAR RING FLEXIBILITY ON THE BIAS LOAD BEHAVIOR OF AERONAUTICAL PLANETARY GEAR SYSTEM by DING Shuo, LUO Yuan, LI Ming, NING Yongxu

“…The planetary gear system is widely used in aircraft transmission equipment because of its small size, light weight and large load capacity，but the problem of bias load caused by various errors cannot be avoided, and a serious bias load condition will lead to under utilization of the advantages of the planetary system cannot be fully exploited.The influence mechanism of the flexible change of the inner gear ring on the bias load behavior of the system was investigated by taking a certain type of aeronautical planetary gear system as the research object.The deflection，stress and strain of the inner gear ring were measured by experiments with different number of planets and different rim thicknesses, and the mechanism of bias load was analyzed and the degree of influence of the number of planets and rim thickness on the bias load behavior of the system was evaluated.The advanced simulation calculation and analysis of a large aeronautical planetary system was completed by using a hierarchical finite element model to quantify the influence mechanism of the variation of inner gear ring flexibility on the load distribution and gear ring deflection of the system.The accuracy of the simulation results was evaluated by fitting the experimental and simulation results to the same parameter range for comparison.The research results provide targeted structural optimization guidance for the development and design of internal gear rings of large aeronautical planetary gear systems, which can greatly reduce the cost of this type of large aeronautical equipment in the design and iteration process.…”
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Thermal Insulating Concrete Wall Panel Design for Sustainable Built Environment by Ao Zhou, Kwun-Wah Wong, Denvid Lau

“…For further understanding the thermal effect of such sandwich wall panel design from building scale, two three-story building models adopting different wall panel designs are constructed for evaluating the temperature distribution of entire buildings using finite element method. Both the experimental and simulation results have shown that the gypsum layer improves the thermal insulation performance by retarding the heat transfer across the building envelopes.…”
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Modelling of size and shape of damage zone in quasi-brittle notched specimens – analytical approach based on fracture-mechanical evaluation of loading curves by J. Klon, V. Veselý

“…The work is accompanied with own conducted numerical simulations using commercial finite element code with implemented cohesive crack model. …”
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Dynamic Response of Wheel-Rail Interaction at Rail Weld in High-Speed Railway by Boyang An, Ping Wang, Jieling Xiao, Jingmang Xu, Rong Chen

“…This work reports a 3D finite element model of wheel-rail rolling contact which can simulate dynamic wheel-rail interaction at arbitrary contact geometry up to 400 km/h. …”
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Estimation of Wheelset Natural Vibration Characteristics Based on Transfer Matrix Method with Various Elastic Beam Models by Pengfei Liu, Hongjun Liu, Qing Wu

“…Both bending and torsional modes are compared with that of the finite element (FE) model. For the wheelset bending modes, if the wheel axle is modelled as the Euler–Bernoulli beam and Timoshenko beam, the natural frequencies can be reflected accurately, especially for the latter one. …”
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Vibration Bandgaps of Piezoelectric Metamaterial Plate with Local Resonators for Vibration Energy Harvesting by Zhongsheng Chen, Jing He, Gang Wang

“…Then, effects of geometric and material parameters on vibration bandgaps are analyzed by finite element-based simulations. In the end, experiments are carried out to validate the simulated results. …”
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Prediction and design optimization of mechanical properties for rubber fertilizer hose reinforced with helically wrapped nylon by Mengfan Wang, Lixin Zhang, Changxin Fu

“…This study aims to enhance the service life of HWNR hoses and the efficiency of liquid fertilizer transport. First, a finite element simulation model and a mathematical model were established to analyze the influence of fiber layer arrangement on the maximum shear strain on the coaxial surface (MSS) and the reaction force on the extrusion roller (RF). …”
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Analytical Solution for Steady-State Seepage Field of Foundation Pit During Water Curtain Leakage by Jun Yu, Weijie Zhang, Dongkai Li

“…Calculations were compared using finite element software and other references, and the results were in good agreement, verifying the correctness of the analytical solution. …”
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Force Magnitude Reconstruction Using the Force Transmissibility Concept by Y. E. Lage, N. M. M. Maia, M. M. Neves

“…This implies the a priori knowledge of the transmissibility of the structure, either experimentally or numerically. In this study a finite element model is built, describing with enough accuracy the dynamic behavior of the structure. …”
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Improvement of Composite Beam with Web Opening Using Posttensioning Tendons under Static and Cyclic Loadings by Utino Worabo Woju, Eyob Tadesse Dadebo

“…To achieve the desired objective, 18 mechanical models have been developed using ABAQUS by considering the shape and location of the web opening, span/depth ratio, and degree of connection as study parameters. The finite element analysis result was validated with experimental results from relevant literature. …”
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An Adjustment Method for the Suspender Tension of CFSTTTHAB Based on Influence Matrix of Single Suspender by Longlin Wang, Hua Wang, Litao Li, Tianzhi Hao, Changxia Wu

“…A method for adjusting suspender tension at the completed state of construction by using numerical simulation and iterative algorithm was also presented. Finite element numerical model was used to calculate the influence matrix of a single suspender. …”
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Comparative Study of Dual-Rotor Permanent Magnet Machines with Series and Parallel Magnetic Circuits by Zhitong Ran, Zi-Qiang Zhu, Dawei Liang

“…The machines are optimized using the finite element analysis (FEA) based on the genetic algorithm. …”
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Vibration Characteristics of Rotating Mistuned Bladed Disks considering the Coriolis Force, Spin Softening, and Stress Stiffening Effects by Shuai Wang, Chuanxing Bi, Bin Zi, Changjun Zheng

“…In this paper, the vibration characteristics of rotating mistuned bladed disks are addressed by considering these rotordynamic effects. First, finite element (FE) models of bladed disks are used to obtain the governing equations of motion, and an efficient method for getting the stress stiffening matrix of sector model is developed. …”
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Free Vibration Characteristics of Moderately Thick Spherical Shell with General Boundary Conditions Based on Ritz Method by Bing Hu, Cong Gao, Hang Zhang, Haichao Li, Fuzhen Pang, Jicai Lang

“…The validity of the proposed method is proved by comparing the results of the same condition with those obtained by the finite element method (FEM) and published literatures. …”
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Low fluctuation stiffness design method for vibration reduction of helical gears by YOU Zhiwei, GAO Jingtao, LI Haonan, SUN Zhou, XUE Cheng

“…Then it was compared with the finite element method to verify the correctness and effectiveness of the parameter design method and the analytical mesh stiffness model. …”
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Surface Settlement Damage Model of Pile-Anchor Supporting Structure in Deep Excavation by Yuanxun Li, Wuyu Zhang, Ningshan Jiang, Hui Li

“…Based on this established method, finite element analysis software was used to calculate the surface subsidence for a field case, and the numerical results were compared with monitoring data in the field. …”
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Influence of Foundation Rigidity on the Structural Response of Mat Foundation by Sami W. Tabsh, Magdi El-Emam

“…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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