For valve control cylinder system,wrong deduction of change rate of pressure with respect to time will result in mistakes of natural frequency and damping ratio of the system,which directly influences the dynamic analysis of the system.

The friction mechanism of the valve-controlled cylinder system and the adverse effect of friction on the system control performance were analyzed.

The main objective of this paper is to develop a valve-controlled cylinder electro-hydraulic positioning system with a longer hydraulic transmission line through theoretical study, simulation and engineering practice.

In this paper, band graph model of the valve controlling cylinder system is established by the method of extended band graph, which is concerned with servo valve nonlinear, saturation, dynamic mechanism time-varying, simulation result illustrates that the model exactly describes dynamic behavior of the syste

Theory analysis of valve controlled cylinder forward and backward velocity ratio and trace property;