6533b7ddfe1ef96bd12747ec
RESEARCH PRODUCT
Novel concept for stabilising a hydraulic circuit containing counterbalance valve and pressure compensated flow supply
Jesper Kirk SørensenMorten Kjeld EbbesenMichael Rygaard Hansensubject
0209 industrial biotechnologyEngineeringbusiness.industryMechanical EngineeringHydraulic circuitFlow (psychology)General Physics and AstronomyResponse time02 engineering and technologySecondary circuitBoomStability conditions020303 mechanical engineering & transports020901 industrial engineering & automation0203 mechanical engineeringControl theoryCylinderHydraulic machinerybusinessdescription
In this paper, a novel concept for stabilising a hydraulic system containing a counterbalance valve and a pressure compensated flow supply is presented. The concept utilizes a secondary circuit where a low-pass filtered value of the load pressure is generated and fed back to the compensator of the flow supply valve. The novel concept has been investigated theoretically and experimentally. A linear model has been developed to verify the improved stability conditions. The novel concept has been implemented on a single boom actuated by a cylinder. The results show that the pressure oscillations in an otherwise unstable system can be suppressed with the novel concept. This happens without any compromise on the load independence of the flow supply but with some limitations on response time.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-04-19 | International Journal of Fluid Power |