Stability of a Hydraulic Circuit with a Counter-balance Valve

抄録

The stability of a hydraulic circuit is studied in the most fundamental circuit consisting of a hydraulic motor and a counter-balance valve. By using linearized equations of the system, the effects of the flow rate of the hydraulic pump, spring constant and taper angle of the spool valve, and cylindrical choke in the pilot line on the stability of the system and the characteristics of self-excited vibration are clarified. As a result, fundamental data for preventing unstable phenomena are obtained.