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As cover processing equipment , structure and cushioning properties of the Hydraulic System , BHF control performance directly affects the quality of the product is the key to the development of modern hydraulic machine . First, according to the 1250T cover single-action frame hydraulic press hydraulic system design needs to determine its power structure , the design of the whole hydraulic system schematic , and the main hydraulic circuit design analysis and action sequence , as well as part of the calculation of the main parameters . Furthermore, the use of Matlab / Simulink simulation analysis buffer system for the preliminary design of the throttle , the system there is a big vibration and noise problems , the accumulator throttle buffer , while changing the system loop and buffer cylinder internal structure to improve cushioning properties of the system , to demonstrate the reasonableness of the program through the simulation comparison . Then, the application of the ratio cartridge technology designed Variable Blank Holder Force hydraulic control system , and using Matlab / Simulink cartridge valve internal parameters such as the length and diameter of the orifice , the control chamber spring stiffness and preload force of the dynamic response of the system performance , cartridge valves parameter optimization and complex method , has been optimized cartridge valves parameters , the dynamic response of the system to improve performance . Finally , through conventional prototype testing , to verify the correctness of the main hydraulic circuit design and action sequence , the reduced noise and vibration . The hydraulic machine multi-cylinder Variable Blank force hydraulic control its dynamic response performance can meet the design goals .
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