基于AMESim的带阻尼调节器的电液换向阀仿真研究

Simulation and Research Based on AMESim for Electro-hydraulic Directional Control Valve with Damping

运用AMESim对带双阻尼调节器的电液换向阀进行建模,利用回油腔开口参数设置得到Y型中位机能的先导阀模型并验证了模型的正确性。通过对不同阻尼孔径仿真,得到对应的主阀芯速度曲线和位移曲线,得出使用阻尼调节器可以减慢主阀芯的换向速度、减小液压冲击、降低系统的振动和噪声的结果。对不同黏性阻尼系数仿真,得到其对电液换向阀的开启响应的影响,为带阻尼调节器的电液换向阀的设计、选择和应用提供了参考依据。

The simulation model about electro-hydraulic directional control valve with double damping controller is established by using the simulation software AMESim. We set the oil return cavity opening parameter to give a function of Y type pilot valve model and verify the correctness of the model. Based on the different damping aperture simulations,we get the main valve core velocity curve and displacement curve. It is concluded that using the damping controller can slow down the main valve core of the reversing speed,reduce the hydraulic impact,the vibration and noise of the system. We carry out simulations of different viscous damping coefficients,whose impacts on electro-hydraulic directional control valve open response are obtained. It will provide referential basis for the design and the selection and application of the electro-hydraulic directional control valve with a damping controller.