Simulation analysis for the attenuation-spring type damper of the pump-valve composite control system

In order to reduce the pressure impact of the pump-valve composite system, the attenuation-spring type damper was utilized in this paper. However the characteristics of pump control system and valve control system are different. The dominated parameters of the attenuation-spring type damper were simulated with AMESIM based on the practical entity model to obtain the best matching parameters. Simulation results indicated that when the attenuation pre-charged pressure were composed of 2MPa and 4MPa, and the attenuation's volume was about 500cm
³
, and the equivalent orifice diameter was about 1.5mm, and the spring Type damper's orifice diameter was about 2mm, it would reduce pressure impact both in the pump control process and valve control process. What's more, it could reduce cavitation noise in the valve control process. These results provided a useful guideline for the next structure design and experiment.