6TH INTERNATIONAL ISTANBUL CURRENT SCIENTIFIC RESEARCH CONGRESS
MATHEMATICAL MODELLING OF A PRESSURE COMPENSATED AXIAL PISTON PUMP
Yayıncı:
Liberty Publications
The hydraulic pump is a hydraulic system element that creates the pressure required for the hydraulically driven flight control surfaces of aircraft and subsystems such as landing gear and flight gun covers. Hydraulic pumps are sized according to the flow rate required by the actuators that provide the rotational movement of the aircraft in three axes, namely pitch, yaw and roll. The dynamic characteristics of the hydraulic pump used for the aircraft to have instantaneous maneuverability during these movements and for the subsystems to be active at the desired speed are as important as its capacity. A number of test procedures are examined during ground tests of flight to determine the suitability of the pump's dynamic behavior. However, most of the time, a mathematical model of the pump to be established in a computer environment is needed to reduce test costs, modify test scenarios and support the flight simulator.In this study, the parameters needed when establishing the mathematical model of the pump belonging to an aircraft's hydraulic system, the effect of these parameters on the pump dynamics and the general structure of the mathematical model are examined using MATLAB-Simulink program. In addition to the dynamic effects originating from the pump's own design, the effects of the components of the hydraulic system integrated with the pump’s dynamics are expressed
