Development Of Electrical Control System Of Teaching Simulator For Y-7 Aircraft Hydraulic System

With the rapid development of aviation industry in China in recent years, aviation education has become a supporting industry of talent resources, science and technology innovation ability. In order to meet the demand of the use of aviation colleges, Xi Jing university and Xi‘an Wei Sheng Aviation Science and Technology Development co., LTD which jointly developed the Y7 aircraft hydraulic system teaching simulator. For the main pressure system, landing gear system, flaps and release system, on the front wheel turning system, landing gear brake systems, windshield rain, the structure of Y7 aircraft hydraulic system is combined into an organic for by the simulator. In the simulator, the traditional teaching mode of plane hydraulic system is broken, and the working principle of Y7 aircraft hydraulic system is accurate simulation from three dimensions, and the development of the mechanical equipment of simulator is implemented; Manual operation and electric control of simulator are combined, to control and display for the motion state of each part, to set up a real-time monitoring using computer on the key components, and the development of the electric control system is implemented.The main work of this paper is to complete the development of the electric control system which meets functional requirements of Y7 aircraft hydraulic system teaching simulator on the finished products of the Y7 aircraft hydraulic system teaching simulator of mechanical equipment, to achieve machine-electrical control of simulator. Research content of electrical control system of Y7 aircraft hydraulic teaching simulator includes: the design of the system of power supply, the design of display and control system, the design of the monitoring system.(1) The design of power supply system is to realize design, manufacture and assembly of the power of the control cabinet according to the demand of each part. The power supply of 380 v is provided to the oil pump motor through the power control cabinet. 5 v, 10 v, 12 v, 27 v DC regulated power supply is provided to display and control system by power supply module of the power of the control cabinet. 15 v, 24 v, 48 v DC regulated power supply is provided to monitor and control system.(2) The design of display and control system is based on the working principle and function demands of hydraulic transmission system, to achieve design, manufacture and assembly of control console and display panel. By manipulating the switch control operation stage, to realize the normal control of simulator gear feed system, the flaps closed system, the front wheel turning system, wheel brake system. The work state of each part is shown on the display panel by light, hydraulic pressure gauge and flow meter.(3) The design monitoring system is monitored the speed and displacement of the simulator gear actuator cylinder, to monitor the flaps analog transmission speed by the closed-loop system which is formed by PC, conversion card, proportional control amplifier, electro-hydraulic proportional valve, speed sensor, displacement sensor, acquisition card. The design of monitoring system is designed to the real-time control of key parts of the simulator, and then to improve the stability and reliability of the operation of simulator. Finally, the feasibility of design of electrical control system of the simulator is validated in this thesis by the performance test of the electric control system of the simulator, and the feasibility of design of Y7 aircraft hydraulic system teaching simulator is validated.