Performance Analysis Of Pneumatic And Hydraulic Ejection System Of Uav

As an integral part of the unmanned aerial vehicle UAV ejection equipment, which bears a vital role, equivalent to the UAV’s feet. Facing the huge market demand and the urgent development request, it is necessary to launch the thorough research to the unmanned air hydraulic ejection. The following work is carried out in this paper.(1) The research results and present situation of domestic and foreign research on UAV ejection technology, analyzes the advantages and disadvantages of various ejection device, and determines the research object of this paper is the hydraulic ejection system.(2) Design without man-machine gas-liquid pneumatic hydraulic catapult system principle, which meets the requirements of the ejection index; machine design and mechanical layout and structure; complete unmanned machine, gas and hydraulic performance of ejection system accounting, verify the design correctness.(3) In the hydraulic system simulation platform of AMESim gas, ejection system, deceleration system model is built; a detailed model of the main components is constructed under the consideration of the physical model and mathematical model of components; the above model, simulation and debugging, to verify the correctness of the model.(4) By using the system level simulation in AMESim, the main parameters are obtained, and the weight of each parameter is analyzed, and the influence of physical parameters on the system ejection is obtained.(5) To verify the key system design feasibility, the proportional valve test platform based on, the establishment of a simulated unmanned machine pneumatic and hydraulic ejection system test device, principle test of a number of key technologies, through the energy storage device, a pressure reducing valve, proportional valve experiment, accuracy to validate the established model is no follow-up man-machine ejection virtual simulation platform provides a basis.