On-line validation of the unsteady flow blocks for hydraulic arms

Abstract

This paper discusses modeling and validation of unsteady flow blocks for hydraulic arms. The proposed model is similar to the look-up table but does not need any flow sensors. The proposed model is identified by experiment with a hydraulic arm and the nominal nonlinear model and compared with conventional model using the Bernoulli principle. The validity of the proposed model is confirmed via on-line validation experiment with the initial pressure measurement only.