Structural Optimization of Rotary High-Speed On-Off Valve Based on Fluid-Structure Interaction
The internal flow field of the rotary high-speed on-off valve will affect the strength of the valve structure when the spool rotates at high speed.Aiming at the problem,the dynamic flow field analysis of the valve was carried out by Fluent,and the flow field simulation results were used as pressure loads,and the fluid-structure interaction analysis was carried out through Static Structural,on this basis,the structure of the rotary high-speed on-off valve was optimized.The results show that the overall distribution law of the in-ternal stress of the valve is that the closer to the center,the stress is greater,the closer to the edge the stress is smaller,and the contact surface between the central cylinder of the valve core and the shoulder of the valve core is the danger area of the valve.The gradient of oil flow velocity at the window of the valve sleeve is obvious,which produces a significant pressure impact on the valve sleeve.Through the optimization of the valve sleeve window chamfer treatment and the valve core refinement,the internal stress intensity of the valve is weakened,and the pressure impact of the fluid on the valve is significantly reduced.
high-speed on-off valvestructural optimizationflow field analysisfluid-structure interaction
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