-
1661
Reconstruction of Riser Profiles by an Underwater Robot Using Inertial Navigation
Published 2012-01-01“…Here, a realistic simulation model of robot kinematics and its environment is proposed, using different sources of data: oil platform characteristics, riser static configuration, sea currents and waves, vortex-induced vibrations, and instrumentation model. A dynamic finite element model of the riser generates a nominal riser profile. …”
Get full text
Article -
1662
A Numerical and Theoretical Investigation of the Flexural Behavior of Steel–Ultra-High-Performance Concrete Composite Slabs
Published 2025-01-01“…Secondly, the flexural failure mechanisms of steel–UHPC composite slabs are clarified through finite element analysis. Under positive bending moments, when the degree of shear connection is lower than 100%, the ultimate load capacity of the composite slabs is determined by the shear capacity of the pegs. …”
Get full text
Article -
1663
Lateral-Torsional Coupling Characteristics of a Two-Stage Planetary Gear Rotor System
Published 2018-01-01“…In such a model, the two-stage planetary gear subsystem is established as a lumped-parameter model and the external rotor subsystem is established as a finite element model. The vibration mode distribution properties and lateral-torsional coupling characteristics are both analyzed by modal strain energy. …”
Get full text
Article -
1664
Modeling of low-frequency acoustic NDE to detect delaminations in multilayer polymer-composite structures
Published 2024-10-01“…The dispersion analysis of antisymmetric (A0) and symmetric (S0) Lamb waves and horizontally polarized shear waves (SH0) for such a panel, with given engineering constants, and subsequent finite element (FE) study showed that only A0 waves generated at sound frequencies can be used for delamination diagnostics by registering of out-of-plane velocities at surface points of the tested structure using a simple laser vibrometer. …”
Get full text
Article -
1665
Structural Performance of a Hybrid FRP-Aluminum Modular Triangular Truss System Subjected to Various Loading Conditions
Published 2014-01-01“…In this paper, a geometrical linear finite element model is introduced and validated by the on-axis loading test; the structural performance of the one-rut truss subjected to off-axis load was numerically obtained; the dissimilarities of the structural performance between the two different loading cases are investigated in detail. …”
Get full text
Article -
1666
Displacement-Based Back-Analysis of the Model Parameters of the Nuozhadu High Earth-Rockfill Dam
Published 2014-01-01“…In this method, an artificial neural network is used as a substitute for time-consuming finite element analysis, and an evolutionary algorithm is applied for both network training and parameter optimization. …”
Get full text
Article -
1667
An improved quantitative assessment method on hazardous interference of power lines to the signal cable in high‐speed railway
Published 2022-03-01“…The validity of the theoretical method is verified through finite element simulation. Finally, the solutions to suppress the EMI are put forward for cable laying. …”
Get full text
Article -
1668
Collaborative Optimization of Aerodynamics and Wind Turbine Blades
Published 2025-01-01“…In the structural discipline, the materials and ply lay-up design are studied. Finite element method-based modal analysis and static structural analysis are conducted to verify the structural design of the blade. …”
Get full text
Article -
1669
Coupled Lateral and Torsional Vibration of Rub-Impact Rotor during Hovering Flight
Published 2021-01-01“…To study the rub-impact response characteristics of the rotor system during hovering flight, the dynamic model of a rub-impact rotor system is established with lateral-torsional vibration coupling effect under arbitrary maneuvering flight conditions using the finite element method and Lagrange equation. An implicit numerical integral method combining the Newmark-β and Newton–Raphson methods is used to solve the vibration response. …”
Get full text
Article -
1670
Study on Dynamic Response Laws and Shock Absorption Measures of Mountain Tunnel under Strong Earthquake
Published 2020-01-01“…Based on the longitudinal and transverse seismic and shock absorption theory of tunnel structure, relying on the actual engineering, a finite element analysis model of a typical mountain tunnel was established. …”
Get full text
Article -
1671
Study on Adiabatic Temperature Rise Reflecting Hydration Degree of Concrete
Published 2018-01-01“…Finally, the thermal parameters determined by different methodologies are substituted into the thermal model, respectively, and the finite element analysis of the concrete specimen is performed. …”
Get full text
Article -
1672
Integrated Prediction of Gas Metal Arc Welding Multi-Layer Welding Heat Cycle, Ferrite Fraction, and Joint Hardness of X80 Pipeline Steel
Published 2024-12-01“…Firstly, we calculated the thermal cycle curve during welding through multi-layer welding numerical simulation using the finite element method (FEM). Afterwards, BP neural networks were used to predict the cooling rates in the temperature interval that ferrite nuclears and grows. …”
Get full text
Article -
1673
Shell Thickness-Dependent Strain Distributions of Confined Au/Ag and Ag/Au Core-Shell Nanoparticles
Published 2015-01-01“…The shell thickness-dependent strain distributions of the Au/Ag and Ag/Au core-shell nanoparticles embedded in Al2O3 matrix have been investigated by finite element method (FEM) calculations, respectively. …”
Get full text
Article -
1674
Study on Near-Net Shape Forging of Large Marine Crank Throws
Published 2024-12-01“…The study employed finite element simulations to evaluate three Near-Net-Shape (NNS) forming methods: One-Step Extrusion (OSE), Upsetting/Backward Extrusion (U/BE), and Grooving–upsetting/Backward Extrusion (G–U/BE). …”
Get full text
Article -
1675
Structural Health Monitoring of Precast Concrete Box Girders Using Selected Vibration-Based Damage Detection Methods
Published 2010-01-01“…Strain gauges configured to measure curvature were also effective, but tended to be susceptible to large errors in near support damage cases. Finite element analyses demonstrated that increasing the number of sensor locations leads to a proportional increase in localization accuracy, while the use of additional modes provides little advantage and can sometimes lead to a deterioration in the performance of the VBDD techniques.…”
Get full text
Article -
1676
Mechanisms of transverse cracking induced by adjacent ply matrix cracks in composite laminates
Published 2025-02-01“…Cracking in composite laminates containing θ-plies adjacent to 90° plies is studied experimentally and numerically using the coupled criterion and finite element calculations. Different damage mechanisms are considered, namely transverse cracking in 90°, cracking in θ-plies, or debonding between adjacent misoriented plies. …”
Get full text
Article -
1677
Research on Dynamic Response of Shallow Buried Tunnel Lining Constructed by Drilling and Blasting Method
Published 2022-01-01“…To study the dynamic response of shallow buried tunnel lining by drilling and blasting method, ABAQUS simulation software was used to establish a tunnel blasting finite element model based on the consideration of in situ stress. …”
Get full text
Article -
1678
Seismic Response Reduction of Megaframe with Vibration Control Substructure
Published 2018-01-01“…Then, based on a validated finite element model, a parametric analysis was conducted to study the effect of two parameters, the tuning frequency (i.e., the frequency of the substructure) and the damping provided by the lead-rubber bearings and viscous dampers on the seismic response reduction of the MFVCS under both frequent and rare earthquakes (i.e., probability of exceedance of 63% and 2% in 50 years, resp.). …”
Get full text
Article -
1679
The New Plastic Flow Machining Process for Producing Thin Sheets
Published 2018-01-01“…Both experiments and finite element (FE) simulations document that the degree of the gradient in the microstructure became more significant when h was increased. …”
Get full text
Article -
1680
Mechanical Properties of New Composite Wood-Plastic Formworks with Aluminum Alloy Frame
Published 2020-01-01“…Numerical analyses confirm that the results of the refined and general finite element models are consistent with the experimental results, but the former has a higher accuracy. …”
Get full text
Article