Optimization of the quality parameters of the transition process in hydraulic pressure regulators

In direct-acting hydraulic regulators, the source of harmful self-oscillations of pressure in hydraulic systems may be their own damping of these regulators. Their elimination is possible by decreasing the valve gain coefficient according to the flow rate, which is determined by the magnitude of the fluid flow increment per unit of displacement of the regulator when the working fluid is throttled in the valve itself.

The article discusses the possibility of optimizing the quality parameters of transient processes in pressure regulators with the help of their integral evaluation using the example of optimization of the gain coefficient for the flow rate and the damping coefficient. It is established that the reduction of the gain is most appropriate for its large values. A further decrease in this ratio slightly improves the quality of the transition process, and may worsen the flow characteristic of the steady-state controller due to excessive displacement of the regulator. The tests confirmed the validity of this assessment of the quality of dynamic processes in the transient modes of these regulators.