The paper combined with engineering background, Selecting the Pressing gear of CNC crushing Machine Steady Support Body as starting point for Optimization modeling, Analyzed the simple conditions theoretical physical model of Support Body. Reasonably we selected design variables, optimized the Support Body, and obtained relevant data. And analyzed the results, to check the accuracy of the optimize results through the individual histogram map.
This paper based on the Homogeneous equilibrium multiphase flow theory.By using FLUENT software the high-speed underwater projectile resistance characteristics were studied.Analyzed the influence of cavitator diameter and Cavitation number on drag reduction characteristics of the projectile,and compared with the empirical formula.The results showed that the larger the diameter of cavitation,the easier supercavitation natural formation,but the drag coefficient be greater.
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