Surface Texture Characteristics Based On Fluid Microcirculation Simulation Analysis And Research

With the development of society, the requirements of environmental protection and efficiency in the mechanical systems are involved more and more attention, and tribological properties of the parts is of great significance for improving the performance and service life of the entire mechanical system.Compared with ordinary friction surface, with appropriate texture in the form of the friction surface will have better circulation of the fluid properties and lubrication properties, so the surface texture theory in the engineering field has been a wide range of applications.On the lubrication mechanism, because the distribution of the staggered mesh trench texture of the surface,thus establishing an accurate lubrication model has great difficulties.In this paper, the basic characteristics of the liquid lubrication, combined with the theoretical basis and practical experience for existing lubrication of the surface of the texture, lubricant where a preliminary inquiry, and theoretical analysis, simulation and scientific experiments on the basis of these two organizations static pressure characteristics of the structure surface. In this paper, the basic characteristics of the liquid lubrication, combined with the theoretical basis and practical experience for existing lubrication of the surface of the texture, lubricant where a preliminary inquiry, and theoretical analysis, simulation and scientific experiments on the basis of these two organizations structure of the surface of the static pressure characteristics.This paper formulates a quadrilateral mesh grooved texture surface and hexagonal mesh grooved texture surface model, described the the microcirculation texture of the basic working principle of the geometric characteristics of the hydrostatic lubrication. And then apply the FLUENT software for Computational Fluid Dynamics iterative calculation, successfully introduced into the surface texture of micro-cycle field. For radial bearings and thrust bearing static characteristics, the use of simplified analytical methods or numerical solution of the numerical solution of the finite element method and finite difference method, the computational efficiency is low. FLUENT software is a very rapid development in recent years the finite volume method, computational efficiency and accuracy are high. The software on the boundary conditions, computational model, control parameters and grid quality, there are stringent requirements. Pressure field and velocity field of the two micro-circulation textured body have been simulated and analyzed in this paper, and obtained lubricating liquid in the pressure of the flow field inside the contours, the scatter plot of the velocity distribution of the pressure on the vector on important cross-section and calculated the lifting force on the rotating wall. Cloud image and data analysis to explore the reasons for poor health results in the case of the surface of the two texture. Analysis showed that the microcirculation characteristics and lubrication properties of the hexagonal mesh model of the surface texture better.Finally, in order to verify the superiority of the hexagonal mesh texture model, the study to lubrication performance have been conducted under different import-export conditions and different lubricating fluids. Results show that the two different texture model under the same conditions, six-side the hydrostatic lubrication performance is superior to the quadrilateral-shaped texture of the surface texture of the surface.