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1981
Dynamic Responses of Supported Beams with Intermediate Supports Under Moving Loads
Published 2012-01-01“…Transient responses of this beam structure are investigated and verified by the traditional finite element method. This method can be used to solve transient response problems of moving pressure loads exciting the beam structure with intermediate support. …”
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1982
Time Frequency Features of Rotor Systems with Slowly Varying Mass
Published 2011-01-01“…With the analytic method and numerical method respectively, the asymptotic solutions and finite element model of rotor system with single slowly varying mass is obtained to investigate the time frequency features of such rotor system; furthermore, with given model of slowly varying mass, the rotor system with dual slowly varying mass is studied. …”
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1983
Numerical prediction of the ductile damage for axial cracks in pipe under internal pressure
Published 2021-10-01“…The three dimensional finite element methods used to evaluate the J-integral. …”
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Article -
1984
Fatigue Fracture Analysis of Elevator Reducer Output Shaft
Published 2016-01-01“…The fatigue analysis of keyway with different curvature radius carried out by using the finite element method( FEM),and comparing with the theoretical result,it is concluded that the reason of fracture is higher notch effect of low curvature radius on the keyway. …”
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1985
COMPUTATIONAL MODELING THE SUPERHEATED STEAM FLOWS INTO THE SETTING PARTS OF MICROTURBINE AND EFFICIENCY ESTIMATION FOR IMPROVEMENT OF TURBOAGGREGATE CONSTRUCTION
Published 2017-06-01“…To improve turbo-aggregate construction the finite element model of the setting parts of microturbine has been modified. …”
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Article -
1986
Width Optimization of Array Electrode for Human Lung Electrical Resistance Tomography System Based on prior Knowledge
Published 2021-01-01“…In electrical resistance tomography (ERT) technology for human lung, under the same experimental conditions, the width of the sensitive field boundary electrode has a significant impact on the calculation accuracy of the inverse problem besides the finite element model (FEM) topology. Aiming to improve the quality of reconstructed images, the FEM for human lung was set up based on prior knowledge. …”
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Article -
1987
Calculation of the Reliability of Helical Gear in Wind Turbine Gearbox Under Fatigue Pitting
Published 2018-01-01“…The fatigue pitting is one of the most common failures,which will make the reliability decline. The finite element model of helical gear with pitting corrosion is established. …”
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Article -
1988
VIBRATION ANALYSIS OF COUPLING BOLT FOR TRACK EXCAVATOR FRAME AND WALKING
Published 2019-01-01“…The natural frequency of the bolt structure is obtained by ANSYS Workbench finite element analysis software. The frequency of the load spectrum and the natural frequency are compared for the loosing condition of the bolt structure. …”
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1989
Dynamics of inclined CNTRC sandwich beams under a moving mass with influence of CNT agglomeration
Published 2023-11-01“…The beams compose of a homogeneous core and two composite face layers with effective properties being estimated by Eshelby–Mori–Tanaka approach. A novel finite element formulation is formulated and used to establish the equation of motion. …”
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Article -
1990
Design of the Gear Reducer Mechanism with Double Motor Redundancy Drive of the Refueling Switch
Published 2019-08-01“…Within the design conditions and design requirements comprehensively considered, the modeling,statics analysis and acceleration impact dynamic load simulation analysis are carried out.The results show that the designed gear reducer meets the design requirements and design conditions,and the maximum strain,maximum deformation and maximum instantaneous impact stress are less than the allowable value.Besides, the accuracy of the finite element model is verified by the real object, and all functions could be realized through the test without interference,which fully meet the design requirements.…”
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Article -
1991
Research of the Dynamic Mechanical Property of the Crown Gear Coupling
Published 2016-01-01“…The full tooth dynamic finite element model of the GIICL9 crown gear coupling is established based on the ANSYS/LS-DYNA.The research results demonstrate that,the impact phenomenon need to be controlled in the start-up process,and the contact stress distribution along the high direction of the tooth is not uniform.In addition,the average contact stress value of each tooth is also different.The smaller of the tool displacement circle radius,the more discrete the contact stress of each tooth.The maximum mises stress of tooth root and contact stress tooth surfaces will not be affected by the rotational speed as the running process is stable.…”
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Article -
1992
Nonlinear Power Inductors for Large Current Crest Factors
Published 2013-01-01“…For this purpose, a nonlinear model was developed based on finite element method (FEM). It is shown how a highly efficient construction with low stray fields and maximum package density can be achieved. …”
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Article -
1993
RESEARCH ON OPTIMAL DESIGN OF PLATE-WEB BEAM STRUCTURE AGAINST FATIGUE BUCKLING BASED ON PARETO GENERAL ALGORITHM
Published 2018-01-01“…In virtue of Detail Fatigue Rating method(DFR), an optimization design method of aircraft plate-web beam structure against fatigue buckling is proposed based on genetic algorithm. After finite element analysis and experimental verification, an optimized model of structure life on fatigue buckling is built by engineering method, and the structure design solution in the condition of minimum mass is achieved with maximum fatigue life. …”
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Article -
1994
A Novel Drive Option for Piezoelectric Ultrasonic Transducers
Published 2011-01-01“…A novel drive option, where the stack contains a new type of divided piezoelectric rings, is analyzed using the finite element method, prototyped, and tested. To gain a better sense of the vibration behavior, the studies focus initially on one ring and subsequently on the different possibilities to assemble the transducer. …”
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1995
Degradation analysis of dynamic properties for plain concrete structures under mixed-mode fracture conditions via an improved cohesive crack approach
Published 2024-03-01“…Specifically, a discrete fracture model, based on an inter-element cohesive approach, has been improved and implemented into a 2D finite element framework to evaluate the progressive variation of the static and dynamic properties as the damage level increases. …”
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1996
Multi-objective Optimization Analysis of Gear Shaft
Published 2015-01-01“…For the problem of gear shaft resonance,the gear shaft is analyzed with adopting finite element method,the inherent frequency and vibration mode are obtained.The maximum of first and second inherent frequency and the minimum quality are set as objective function,based on Isight integrated optimization platform,the AMGA,NCGA,NSGA-II is adopted to the optimization design in respect of the diameter of neck of shaft.After optimization,the first inherent frequency and second inherent frequency are improved by 6.16% and 6.13%.The low inherent frequency are outside the range of excitation frequency,the quality of gear shaft is reduced,so the resonance will be effectively avoided.…”
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Article -
1997
STRUCTURAL DESIGN AND EXPERIMENTAL RESEARCH ON THE RUBBER JOINTS OF THE GEARBOX BOOM
Published 2021-01-01“…In order to improve the service life of rubber joints of standard subway gearbox boom,the causes of fatigue failure of rubber joints are analyzed,the characteristics of different structures of rubber joints are studied,a new rubber joint with oblique linear rubber free surface and rubber thickness gradient is designed,the friction amplitude and stress concentration of rubber free surface are reduced,and by using finite element analysis software,the fatigue resistance of the new structure is optimized to improve by optimizing the fatigue resistance of the new structure using FEA software,the structural design defects are improved and the service life of the product is increased.…”
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Article -
1998
Design Method of Equivalent Test Pieces for High-torque Laminated Coupling
Published 2024-06-01“…The accuracy and feasibility of the design method are verified by theoretical calculation and finite element simulation analysis.…”
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Article -
1999
Research on High Precision Modal Identification Method and Structural Optimization Design of Gearboxes
Published 2023-09-01“…Based on the first six orders of the gearbox obtained from the test, a modal finite element calculation method considering both calculation accuracy and calculation efficiency is proposed. …”
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Article -
2000
First Characterization of a New Method for Numerically Solving the Dirichlet Problem of the Two-Dimensional Electrical Impedance Equation
Published 2013-01-01“…To warrant the effectiveness of the posed method, we consider several examples of conductivity functions, whose boundary conditions are exact solutions of the electrical impedance equation, performing a brief comparison with the finite element method. Finally, we discuss the possible contributions of these results to the field of the electrical impedance tomography.…”
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