Dynamic Characteristics Analysis of Opposed Piston Pump Based on AMESim
Based on the working principle of 5DW150/16 opposed piston pump,the output flow pulsation,dynamic characteristic simulation curve and the opening and closing characteristics of the suction valve and discharge valve were analyzed by using AMESim hydraulic simulation software.The results show that the pressure of the plunger cavity of the opposed piston pump has overshoot phenom-enon,the diameter of the plunger is proportional to the flow pulsation rate.The crankshaft speed has an important influence on the flow pulsation and volumetric efficiency.The phase dispersion method can optimize the flow pulsation rate,reduce the opening and closing hysteresis and flow loss of suction and discharge valves,and reduce the noise in the working process.Through the optimization analysis of the spring stiffness and spring preload parameters of the suction valve and discharge valve,the effectiveness and accuracy of the hydrau-lic simulation model are verified.
AMESimdynamic characteristicsopposed piston pumpsuction valve and discharge valveflow pulsation