Numerical simulation of hydrodynamic pressure field during airfoil suspension polishing process
Distribution of hydrodynamic pressure during airfoil suspension polishing(ASP)process are analyzed,by using hydrodynamic pressure mathematical models deduced when considering eccentric,constant angular velocity and reverse rotation between workpiece plate and polishing plate.Flow field of airfoil suspension polishing is nu-merically simulated,and motion relationship between disc polishing and workpiece disc,as well as effect of airfoil curves and attack angles of polish plate on magnitude and uniformity of hydrodynamic pressure,is declared.Re-sults suggest that uniformity of hydrodynamic pressure when using co-rotating mode is better than that of eccentric rotating between workpiece plate and polishing plate.Best uniformity of hydrodynamic pressure distribution is gotten when rotational speed ratio is-1.Best hydrodynamic pressure band distribution is found when using NACA 16018 airfoil curve with 0° attack angle.
airfoil suspension polishing(ASP)hydrodynamic pressureratio of speedkinematic analysis