At first, it studied the plant model of position and force system about valve control unsymmetrical hydraulic ram.
首先，建立了阀控非对称缸位置控制系统与力控制系统的数学模型。
2
Servo valves consists of feedback - electric-hydraulic servo valve and position feedback servo valves.
伺服阀主要分为力反馈式电液伺服阀和位置反馈式伺服阀。
3
Slide valve function of three position directional valve not only affects the working state of hydraulic system but also affects the working performance of implement part when changing direction.