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2921
Wave Propagation in L-Shape Beams with Piezoelectric Shunting Arrays
Published 2019-01-01“…As the resistance increases, the width of the band gaps grows, whereas the attainable maximum attenuation within the band gaps shows a significant decrease. Also, finite element simulations are performed to validate the numerical predictions, which demonstrate that the resulting transmissibility of displacements agree well with the band gaps.…”
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2922
Static Characteristics of Improved Composite Box Girder with Corrugated Steel Webs
Published 2022-01-01“…The results show that the analytical solution is in good agreement with the finite element solution. A shear lag effect and a negative shear lag effect exist in the cantilever composite box girder under uniform load. …”
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2923
Fatigue Performance of Steel–UHPC Composite Bridge Deck System with Large Longitudinal Rib
Published 2022-01-01“…The influence of the UHPC layer on the OSD fatigue performance was evaluated by experiments and finite element analysis. After the formation of microcracks on the UHPC surface layer, the composite bridge deck system continued to exhibit adequate fatigue performance. …”
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2924
Structure Design and Deflection Analysis of the New Large Deflection Lamina Emergent Joints
Published 2022-12-01“…Through the theoretical calculation and the finite element simulation analysis of OSD-LEJ and IOSD-LEJ, the errors between them are about 4% and 4.2% respectively. …”
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2925
THE MECHANICAL BEHAVIOR OF A RANDOM THIN- WALLED AND POROUS METALLIC HOLLOW SPHERE
Published 2019-01-01“…The individual MHS with 2 mm to 3 mm outside diameter,10 μm to 40 μm thick walls with porosity were studied, and nano-indentation test, quasi-static uniaxial compression experiment and elastic compression test were performed on the metallic hollow spheres to get the Young’s modulus and hardness of the MHS and the material which was made up of the sphere, also single MHS compression deformation process and characteristics could be observed, finally simulated elastic stage of metallic hollow sphere by finite element software ABAQUS, analyzed the influence of the Young’s modulus of the whole MHS by porosity on thin wall, and result shows that with the porosity increasing, the elastic modulus of MHS will decrease, and present nonlinear distribution, it can be described the same format of a power law function as the relation of porosity with the porous thin wall.…”
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2926
Deformation Behavior of Press Formed Shell by Indentation and Its Numerical Simulation
Published 2015-01-01“…The increase ratio of the energy is prominent when the hemispherical indentor is replaced by a flat-headed one in both shell shapes. Finite element simulation was also conducted. Deformation behaviors were successfully predicted when the kinematic hardening plasticity was introduced in the material model.…”
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2927
Comportamento a fatica dei giunti saldati in funzione della densità di energia di deformazione locale: influenza dei campi di tensione singolari e non singolari
Published 2009-06-01“…Both contributions are directly accounted for by using finite element models, also when the relevant meshes are quite coarse. …”
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2928
Microstructural Mechanical Analysis of Warm-Mixed Reclaimed Semiflexible Pavement Materials with Interfacial Weakening Effect
Published 2021-01-01“…In order to investigate the interfacial weakening effect of the warm-mixed reclaimed semiflexible pavement material in a microstructural perspective, an image-based two-dimensional microstructural finite element model was presented. Results show that the maximum compressive stress of the new and RAP aggregates and cement mortar with interface is greater than that without interface and the compressive stress of the material increases when considering the interface. …”
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2929
STRUCTURAL DEIGN OF KEY COMPONENTS OF FEEDER BASED ON TOPOLOGY OPTIMIZATION AND MULTI-OBJECTIVE OPTIMIZATION
Published 2020-01-01“…In view of the problem that the feeder often fails due to insufficient strength,the transient dynamics of a certain type of vibrating feeder under typical working conditions is analyzed based on the finite element method(FEM). At the same time,the dynamic stress measurement under the corresponding working conditions is carried out. …”
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2930
Soft Sensor for Oxide Scales on the Steam Side of Superheater Tubes under Uneven Circumferential Load
Published 2015-01-01“…On the basis of the oxide scale thickness, the stress of oxide scales is calculated by the finite element method. At last, the oxide scale thickness and stress sensors are established on support vector machine (SMV) optimized by particle swarm optimization (PSO) with time and circumferential angles as inputs and oxide scale thickness and stress as outputs. …”
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2931
Reduction of Cogging Torque in Dual Rotor Permanent Magnet Generator for Direct Coupled Wind Energy Systems
Published 2014-01-01“…Both determination and reduction of cogging torque were carried out by finite element analysis (FEA) using MagNet Software. The cogging torque of DRFPMG has been reduced without major change in induced emf. …”
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2932
Numerical analysis of application limits of Vyalov’s formula for an ice-soil thickness
Published 2019-06-01“…The numerical simulation has been conducted by the finite element method. For the simulation of a stress-strain state of an ice-soil wall a new computational scheme has been proposed. …”
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2933
Identification of Modal Parameters for Reinforcement of Walls in Earthen Ruins
Published 2021-01-01“…Then, according to the data of elastic modulus obtained in the lab, the finite element calculation is carried out, and referring to the results of field measurement, the revised elastic modulus value is 205.90 MPa. …”
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2934
Properties of Reactive Powder Concrete and Its Application in Highway Bridge
Published 2016-01-01“…Furthermore, the RPC satisfactorily meets the requirement of practical application for Xialouzi Bridge built with the RPC totally according to the calculation with finite element analysis software MIDAS/Civil. And the static loading testing result suggests that design of the bridge meets the utilization requirements.…”
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2935
Flexural Response of Steel-Concrete Composite Truss Beams
Published 2019-01-01“…., load-deflection, load-slippage, and load-strain curves) of the composite trusses were examined. The commercial finite-element (FE) software ANSYS was employed to conduct numerical simulations. …”
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2936
EXPERIMENTAL STUDY AND ANALYSIS ON THE CHARACTERISTICS AND FATIGUE LIFE OF DUMBBELL PIN OF SCRAPER CONVEYOR
Published 2018-01-01“…First,the force model of dumbbell pin was established,in which the pin used ANSYS dumbbell finite element was analyzed then the stress distribution results were obtained. …”
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2937
Research on Fatigue Life and Node Displacement Modification Method of Helical Gears
Published 2024-05-01“…Combined with the finite element static solution process and the <italic>S-N</italic> curve of gear materials, the fatigue life of helical gear pairs is analyzed in nCode. …”
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2938
DESIGN OF A TWO-AXIS MEMS SENSOR FOR MEASURING THE FORCE AND TORQUE WITH COMB STRUCTURE
Published 2018-01-01“…Based on the micro-electro-mechanical systems(MEMS) technology,the chip structure of a two-axis force sensor with comb structure was designed.Silicon force sensitive structure converted the faint mechanical signals into measurable electrical signals.After finite element model was established,the structure and electrical properties of the sensor were analyzed.The corresponding relation between the mechanical signals and the electrical signal was obtained.The mode analysis and harmonic response analysis were performed for the model.The natural frequency of the structure and the harmonic response frequency both are verified that far away from the operating frequency of the system.The work stability and measurement accuracy of the chip are guaranteed.The resolutions of force and moment of the sensor chip are 2.85 μm and 0.0382 μN·m,respectively.The linearity of the signal conversion reached 0.999 6 and 0.999 9.The first and second order modal natural frequency is783.28 Hz and 1 294.3 Hz and harmonic response frequency is 770 Hz.Simulation results meet the requirement of performance specification.…”
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2939
RESEARCH ON EMBEDDED SMART BEARING STRUCTURE ANALYSIS AND VIBRATION MONITORING SYSTEM DESIGN (MT)
Published 2022-01-01“…Combined with the finite element simulation model, the influence of outer ring grooving on bearing reliability is analyzed, and the radial grooving structure of outer ring of rolling bearing is determined. …”
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2940
Dynamic Contact Analysis of Torus-involute Gear
Published 2015-01-01“…Taking the torus-involute gear as study object,according to the theory of gear meshing and the gear hobbing process,the tooth surface equations of torus-involute gears with convex and concave teeth are derived by using the tooth surface equation of counterpart rack.According to the mathematical conditions of neither undercutting nor tooth pointing,based on MATLAB,the Graphical User Interface which contains geometric parameter designs of torus-involute gear is developed.In the light of the tooth surface equations of torus-involute gear,the three-dimensional coordinates of torus-involute gear are calculated which can be used to develop the3-D solid models.The Hypermesh is used to mesh the 3-D models of torus-involute gear.Based on the nonlinear contact algorithm,the finite element models of convex and concave torus-involute gears meshing are established which can be used to implement the dynamic contact analysis in ABAQUS.The results reveal that the width of torus-involute gears is limited by gear undercutting or tooth pointing and the maximum contact stress will be steady after hobbing for a while.The contact stress is small when just a pair of gear teeth are meshing,while the contact stress is large when two pairs of gear teeth are meshing.…”
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