Journal ArticleDOI
Erosion behavior and influence of solid particles in hydraulic spool valve without notches
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TLDR
In this article, the erosive behavior and influence of solid particles in hydraulic spool valve without notches were investigated and the exact calculation method of the orifice area under erosion was discussed and put forward.About:
This article is published in Engineering Failure Analysis.The article was published on 2020-01-01. It has received 21 citations till now. The article focuses on the topics: Electrohydraulic servo valve & Hydraulic machinery.read more
Citations
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Journal ArticleDOI
Characterization of the Solid Particle Erosion of the Sealing Surface Materials of a Ball Valve
TL;DR: In this paper, the self-designed erosion experiment method was combined with computational fluid dynamics (CFD), while the Euler-Lagrange method was also introduced to optimize the Oka erosion model and Ford particle-wall rebound model.
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Research on the Dynamic Erosion Wear Characteristics of a Nozzle Flapper Pressure Servo Valve Used in Aircraft Brake System
TL;DR: In this paper, a dynamic erosion wear analysis and service life prediction method for the servo valve of the aircraft brake system is proposed. And the model is combined with the failure threshold value determined by the dynamics simulation to finish the service-life prediction.
Journal ArticleDOI
Experimental study on thermal deformation and clamping force characteristics of hydraulic spool valve
TL;DR: In this article, a viscous heating experiment of V-groove spool was carried out to find out the temperature difference between the two; the thermal deformation diameters of the spool and valve body were measured by constant temperature control method; a measuring device was set up to measure the sool clamping force at different temperatures.
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Investigation of Movement and Deposition Behaviors of Solid Particles in Hydraulic Water Reservoir via the CFD-DEM Coupling Method
TL;DR: In this article , the authors used the CFD-DEM coupling method to predict the accurate deposition position of iron particles and sand particles when ignoring the small-scale turbulence effect in the flow field and showed that the particle motion traces and deposition patterns in the reservoir illustrate that the flow development on the bottom surface results in the particles turning, and particles tend to settle in the low flow energy position.
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Optimization Algorithm and Joint Simulation to Micro Thermal Deformation Using Temperature Measurement in the Orifice of Hydraulic Valve
TL;DR: An optimization algorithm based on measurement data (M-OA) for the thermal deformation of the valve orifice is proposed in this paper, which can help reveal the micro-mechanism of spool clamping.
References
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Journal ArticleDOI
Some observations on the erosion of ductile metals
TL;DR: In this paper, the effect of some of these variables may be predicted on simple fundamental grounds, and quantitative predictions may be made for the erosion of ductile metals by hard abrasive grains which strike at grazing angles.
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The rôle of particle properties in the erosion of brittle materials
P.H. Shipway,Ian M. Hutchings +1 more
TL;DR: In this article, the authors examined the erosion of a range of brittle materials (soda-lime glass, borosilicate glass, fused silica, boron carbide, partially stabilized zirconia, alumina and silicon carbide) with number of different erodent particle types.
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Flow forces analysis of an open center hydraulic directional control valve sliding spool
TL;DR: In this article, an experimental and numerical analysis of the driving forces on a 4/3 hydraulic open center directional control valve is presented, where the assembling of the valve is modified to allow external control of the spool displacement and the flow force measurement.
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Prediction of impact erosion in valve geometries
TL;DR: In this paper, an Eulerian-Lagrangian model of the flow is used, in combination with empirically developed equations for the mass removal, to examine erosion in valve components for aqueous slurry flows.
Journal ArticleDOI
Experimental and computational modelling of solid particle erosion in a pipe annular cavity
TL;DR: In this article, the authors used a Lagrangian approach to predict the erosion rate at the forward-facing step by the 198-μm-sized particles to within ±30% of experimental values, while that for 38-mm-size particles are over predicted by up to 100%.