Study of the Squeeze Film Damper of Larger Flow Rate High-Speed On/Off Valve
A new type of squeeze film damper (SFD) is designed to reduce spool’s impact and vibration which happen in the two-stage larger flow rate high-speed on/off valve with the 450 L/min flow rate and 8ms turn-off time, the valve’s sealing performance、reliability and service life improve largely, and the valve’s response speed doesn’t drop. The simulated and experimental results show: The damper has optimum buffering performance when oil film thickness is 0.1mm, and the spool closing process approach ideal state. The valve will has a great potential application in the powerful occasions because of it's perfect performance: larger flow rate、fast response and novel damper.
H. B. Jiang et al., "Study of the Squeeze Film Damper of Larger Flow Rate High-Speed On/Off Valve", Applied Mechanics and Materials, Vols. 130-134, pp. 594-598, 2012