Simulation and Parameter Optimization of Lubrication Performance of Square Pit Half Cylinder Superimposed Texture Slider
By designing the superimposed texture of the square pit and half cylinder,depth,and angle,the fluid dynamic pressure model is established for the superimposed texture of the square pit and half cylinder with different area occupancy,depth,and angle,exploring the influence of different geometric parameters of superimposed texture on fluid dynamic pressure distribution and oil film bearing capacity.The simulation results show that as the occupancy rate of the texture area changes,the load-bearing capacity of the oil film with the superimposed texture of the square pit and half cylinder first increases and then decreases,the influence of texture depth on the load-bearing capacity of the oil film is relatively small,the texture with a certain dip angle can improve the dynamic lubrication performance of the slider;When the depth to diameter ratio of the square pit and half cylinder remains unchanged in the texture,the fluid dynamic pressure effect is better when the area occupancy rate is 36％,and the average friction coefficient is the smallest;When the texture area share remains unchanged,the dynamic pressure effect is better when the depth is 0.15 mm and the texture angle is 30°,at this point,the textured slider exhibits excellent tribological performance.The research results provide reference for further improving the lubrication performance of the textured feature slider.
万方数据
维普
