Dynamic Response Relationship Between Swashplate’s Structural Parameters of Piston Pump and Hydrodynamics Features

Abstract:

The paper deals mainly with the Swashplate axial piston pump.Based on a simulation of the discharging and sucking of piston pump by computational fluid dynamics method(CFD),an analysis was made of the impact of the triangular groove structure on the shock and reversed flow properties to reduce the pressure shock and reversed flow of a working swashplate piston pump.An integration method,which integrated parametric modeling, CFD analysising, optimization algorithm, experimental design and approximation model in one whole redesign system, was adopted to optimize the triangular groove structure.The response surface fuction of pressure shock and flow fluctuation by valve plate triangular groove structure was acquired. Finally, an optimal structure size was obtained based on the response surface model.

Key words:valve plate triangular groove; computational fluid dynamis; integration; response surface model; redesign