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Digital hydraulic control system for ship rudder
The ship rudder is the core system of ship steering control. Steering gear hydraulic control system mainly uses two basic methods of control, the pump control valve type and control type, and thus derived hydraulic compound control, namely pump valve series control, parallel control valve pump, electro-hydraulic compound control. The inherent static and dynamic characteristics of these systems have great limitations and differences in terms of system accuracy, response speed, efficiency, overall arrangement, system complexity and so on.
Digital hydraulic ship rudder includes automatic control, executive device, a detection feedback, are integrated in the digital cylinder inside, without the need for any given parameters and algorithm of adjustment, only into electric pulse signal and connect the hydraulic line. The system by changing the pulse frequency and the number will be able to realize the control of the rudder. The system energy transfer is completed by the hydraulic signaling by electrical impulses, the flexible digital hydraulic ship steering gear system has a simple principle, powerful function, convenient maintenance personnel management and use of, more conducive to through a computer or dedicated controller to realize the automation of driving control. Digital hydraulic ship rudder has the ability to communicate with the outside world, such as communication with the satellite positioning system, the whole route can be handed over to the autopilot, complete automatic navigation control.
Digital hydraulic ship rudder has simple system, convenient maintenance, easy to operate, safe and reliable, control of high precision, energy-saving features, can be manually or semi automatically, a variety of automatic operation, especially suitable for large ships or unmanned ship steering control system.
Beijing University of Aeronautics and Astronautics, the use of proof