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RESEARCH ON ACOUSTIC RADIATION CHARACTERISTIC OF SAW BLADE CUTTING SYSTEM BASED ON MULTI-FIELD COUPLING
Published 2017-01-01“…In order to study the distribution of sound field and quantitative estimates of the cutting noise,a multiphysics coupling model was constructed.Firstly,the vibration response of the fluid structure interaction system was extracted under multibody dynamic contact by using method of center difference.Moreover,a co-simulation method for the acoustic radiation model based on the boundary element method and acoustic coupling theory was presented.On this basis,a structure acoustic coupling model was established to calculate the sound pressure according to the results of the vibration response previously calculated.Then,the sound radiation in time domain characteristics and domain characteristics with the coupled system in half the space is studied.On the basis of the FSI theory,the computing results of the one-way coupling method and two-way coupling method are compared.Finally,the effects of radiating area influence on the sound power is discussed,makes clear the primarily radiation area.As compared with the experimentation results,the multi-field coupling model established in this paper about cutting noise of the saw blade is correct and feasible.…”
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62
INFLUENCE OF LOAD AND SPEED CHANGE ON LUBRICATION PERFORMANCE OF LOW SPEED HEAVY DUTY BEARINGS
Published 2019-01-01“…Building model of fluid-structure interaction by using ABAQUS software, and it can get a conclusion: the oil film thickness distributes in rectangular section, the thickness of oil film between the rolling element and inner ring is thinner than that between rolling element and outer ring, the oil film pressure increases gradually at the entrance of the contact zone, and the oil film pressure at the inner raceway contact point is greater than that of the outer raceway. …”
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63
Comparative study of conventional and hydromechanical deep drawing processes based on finite element analysis
Published 2019-06-01“…The effects of the fluid structure interaction on the material formability, the strain and the thickness distributions are investigated. …”
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64
The Origin of Ekman Flow in a Cavity Subject to Impulsive Rotational Motions
Published 2001-01-01“…An experimental study is performed to disclose the origin of Ekman flow on the surfaces of a rotating drum resulting from fluid-structure interaction after an impulsive start of motion (referred to as the spin-up process) or an impulsive stop (the spin-down process). …”
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65
Modeling and Control of the Vibration of Two Beams Coupled with Fluid and Active Links
Published 2012-01-01“…In the modeling of the coupled beam system, orthogonal functions are used to represent vibration of the beams and the fluid-structure interaction is considered. Frequency Response Functions (FRFs) are derived from the coupled governing equations and the superposition principle for linear vibration systems. …”
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66
A Fully Coupled Time-Domain BEM-FEM Method for the Prediction of Symmetric Hydroelastic Responses of Ships with Forward Speed
Published 2022-01-01“…Modal actions are accounted for by Timoshenko beam structural dynamics. Flexible fluid structure interaction (FFSI) coupling is enabled by a body boundary condition, and a direct integration Newmark-β scheme is used to obtain symmetric dynamic responses. …”
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67
Numerical study of semi-elliptical cracks in the critical position of pipe elbow
Published 2019-07-01“…In this numerical study, the Fluid-Structure Interaction (FSI) analysis was carried out using Ansys software. …”
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68
Experimental Investigation of Dynamic Response and Deformation of Aluminium Honeycomb Sandwich Panels Subjected to Underwater Impulsive Loads
Published 2015-01-01“…The response of aluminium sandwich panels with three thicknesses’ core subjected to different underwater loading levels has been studied in the fluid-structure interaction (FSI) experiments. The transient response of the panels is measured using a three-dimensional (3D) Digital Image Correlation (DIC) system, along with high-speed photography. …”
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69
Vibration Failure Analysis and Countermeasures of the Inlet Pipelines at a Gas Compressor Station
Published 2019-01-01“…A better modification model was applied by performing modal analysis and fluid-structure interaction (FSI) vibration analysis using the finite element method. …”
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70
Limiting Performance Analysis of Underwater Shock Isolation of a System with Biodynamic Response Using Genetic Algorithm
Published 2000-01-01“…The model incorporates the effect of fluid-structure interaction, biodynamic response of human body, isolator influence. …”
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71
Influence of Blade Profiles on Plastic Centrifugal Pump Performance
Published 2020-01-01“…From the contours of the velocity and pressure, the vapor volume fraction distribution, and fluid-structure interaction analysis of impellers, the impeller drawn by the logarithmic spiral method was better than others. …”
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72
Algorithmic Generation of Parameterized Geometric Models of the Aortic Valve and Left Ventricle
Published 2024-12-01“…Simulating the cardiac valves is one of the most complex tasks in cardiovascular modeling. As fluid–structure interaction simulations are highly computationally demanding, machine-learning techniques can be considered a good alternative. …”
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73
Experimental Investigation of the Effect of Radial Gap and Impeller Blade Exit on Flow-Induced Vibration at the Blade-Passing Frequency in a Centrifugal Pump
Published 2009-01-01“…It has been recognized that the pressure pulsation excited by rotor-stator interaction in large pumps is strongly influenced by the radial gap between impeller and volute diffusers/tongues and the geometry of impeller blade at exit. This fluid-structure interaction phenomenon, as manifested by the pressure pulsation, is the main cause of flow-induced vibrations at the blade-passing frequency. …”
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74
Numerical Prediction of Hydrodynamic Loading on Circular Cylinder Array in Oscillatory Flow Using Direct-Forcing Immersed Boundary Method
Published 2012-01-01“…This study aims to provide a numerical model to simulate fluid-structure interaction around the cylindrical structures and to estimate those loadings using the direct-forcing immersed boundary method. …”
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75
Finite Element Modeling and Analysis of Nonlinear Impact and Frictional Motion Responses Including Fluid—Structure Coupling Effects
Published 1997-01-01“…The submerged free standing rack system and surrounding water are coupled due to hydrodynamic fluid-structure interaction (FSI) using potential theory. The models developed have features that allow consideration of geometric and material nonlinearities including (1) the impacts of fuel assemblies to rack cells, a rack to adjacent racks or pool walls, and rack support legs to the pool floor; (2) the hydrodynamic coupling of fuel assemblies with their storing racks, and of a rack with adjacent racks, pool walls, and the pool floor; and (3) the dynamic motion behavior of rocking, twisting, and frictional sliding of rack modules. …”
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76
Wind-Induced Response of an L-Shaped Cable Support Glass Curtain Wall
Published 2017-01-01“…Four wind flow directions are specified, namely, 0°, 15°, 30°, and 45°, to analyze the wind-induced dynamic response of this structure with consideration of the fluid-structure interaction effect. Finally, the deflection of the glass surface is studied by statistical analysis of displacement so as to obtain the wind vibration coefficient suitable for structural design of practical projects, and the variation of cable force is investigated as well.…”
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77
A Comparison Investigation on Cylinder Test in Different Ambient Media by Experiment and Numerical Simulation
Published 2020-01-01“…When the detonation reaction occurs after the charge in the warhead is ignited, the propagation of the detonation wave and the expansion of the detonation product will interact with the wrapped metallic shell and cause the shell material to accelerate, extremely deform, and eventually rupture, which is a typical strong fluid-structure interaction problem. In this paper, a comparison investigation on a cylinder test in different ambient media was implemented by experiment and numerical simulation, respectively. …”
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78
Dynamic Response of an End-Supported Pontoon Bridge due to Wave Excitation: Numerical Predictions versus Measurements
Published 2021-01-01“…Hydrodynamic coefficients that describe the fluid-structure interaction and the wave transfer functions are obtained by applying linear potential theory. …”
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79
Influence of Support Stiffness on Dynamic Characteristics of the Hydraulic Pipe Subjected to Basic Vibration
Published 2018-01-01“…In consideration of the fluid-structure interaction (FSI), the support was simplified as an equivalent and a spring. …”
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80
Study on FSI Analysis Method of a Large Hydropower House and Its Vortex-Induced Vibration Regularities
Published 2020-01-01“…In this paper, the bidirectional fluid-structure interaction (FSI) simulation analysis theory for a large hydropower house is studied, and the analysis methods of geometric simulation, mechanical simulation, and vibration energy transmission path simulation are presented. …”
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