Modeling of Hydraulic Control System of Excavator Motion

Abstract

The aim of this study is to develop a Boom motion model of the hydraulic system of an Excavator. Excavator hydraulic system components are modeled and analyzed in the same environment using the physical modeling toolboxes inside the commercially available simulation software MATLAB/Simulink interaction between the bodes and response of the hydraulic system are obtained by co-operating the hydraulic analyses variables such as pressure flow and displacement are measured on a physical machine and then compared with the simulation results. Two simhydraulic model was found, boom raising in high speed and the other is the boom normal raising; boom normal lowering. The compared between the required values and simulation results was found , the errors between the simulation results and real values was found and the maximum error in simulation result is 40% in cylinder pressure in Boom raising of high speed .