Title :
Simulation and Experiment Research on Hydraulic Control System of Coal Harrow of Material Piling and Taking Machine
Author :
Li, Longhai ; Ji, Guang-zhong
Author_Institution :
Dept of Mech. Eng., Univ. of Sci. & Technol. Beijing, Beijing
Abstract :
In this paper, the mathematic models of the proportional amplifier and the electro-hydraulic proportional valve in a hydraulic control system of material piling and taking machine are built respectively by catalog and then the transfer Function of hydraulic cylinder and Load system is presented. The theory model of speed curve is put forward and several available speed curves are constructed in this thesis. Three control strategies are presented to realize the speed control and then the optimal one is selected as the control input of this system.The dynamical simulation of hydraulic system is completed. The method of dynamic simulation is adopted to find the system optimal parameter matching. The test method and steps of dynamic response is proposed at last.
Keywords :
coal; dynamic response; hydraulic control equipment; hydraulic systems; transfer functions; valves; velocity control; coal harrow; control strategy; dynamic response; dynamical simulation; electrohydraulic proportional valve; hydraulic control system; hydraulic cylinder; material piling; proportional amplifier; speed control; speed curve; system optimal parameter matching; taking machine; transfer function; Control system synthesis; Hydraulic systems; Mathematical model; Mathematics; Optimal control; Proportional control; Testing; Transfer functions; Valves; Velocity control;
Conference_Titel :
Innovative Computing Information and Control, 2008. ICICIC '08. 3rd International Conference on
Conference_Location :
Dalian, Liaoning
Print_ISBN :
978-0-7695-3161-8
Electronic_ISBN :
978-0-7695-3161-8
DOI :
10.1109/ICICIC.2008.495
