The Simulation Analysis For The Aircraft Arresting Control System

Aircraft arresting system is an important airport safeguard equipment, which is used to arrest an aircraft going beyond the end of a runway or to provide safeguard for the pilots and the aircrafts in a danger of failure to land . The domestic arresting system is presently a pure mechanic-hydraulic system. The cam, controlling the throttle valve hatch, is the key component of the aircraft arresting system. The performance of the shape of the cam designed will directly affect that the whole arresting system, which can be satisfied with the working demand or not. To meet the different arresting need, the cam must be set in the different initial working angel which causes that the arresting effects and the precisions of this arresting system are not expected. At the same time, if the shape of the cam is destroyed or the initial working angel is not enough precise, the arresting performance will be deteriorated. Once the shape of the cam being fixed, the type of the arresting aircraft, the arresting displacement and the arresting velocity of the aircraft are fixed too. When the arresting specifications are changed, it needs to replace the cam even the throttle valve. One type of the cam is corresponding to one working initial condition. It can't satisfy the requirement of high efficiency and good work performance. So, an automatic control system, composed of the electric-hydraulic proportional valve, is introduced in this paper to substitute the formal pure mechanic-hydraulic system.Firstly the dissertation summarizes the application, development and study quo of aircraft arresting system. The significance and background of the study are presented. The former aircraft arresting system's drawbacks are pointed out and the new hydraulic system is redesigned based on this foundation. According to the design specifications, the output pressure of the hydraulic system is needed to change with the different position of the aircraft during the arresting process, so the new system adopts the electro-hydraulic proportional overflow valve control system instead of the throttle valve. Because of the braking pressure has direct proportion with the input electricity signal, one can adjust the electricity signal of the proportion overflow valve to change the output pressure of the system during the different aircraft arresting position. In this way, the system can satisfy the arresting requires.Secondly this paper has analyzed on kinematics, statics and dynamics of the arresting system in detail and established the mathematics model of the aircraft arresting system. At the...