無人機(jī)氣液壓彈射系統(tǒng)性能分析
[Abstract]:UAV hydraulic ejection take-off mode is a kind of advanced kinetic energy ejector take-off mode developed in the 90's of 20 ~ (th) ~ (th) century. As an integral part of drones, drones eject equipment plays a vital role, equivalent to the feet of drones. In the face of huge market demand and urgent development requirement, it is necessary to carry out in-depth research on UAV hydraulic ejection. The following work is carried out in this paper. (1) the research results and present situation of UAV ejection technology at home and abroad are investigated, and the advantages and disadvantages of various ejection devices are analyzed. (2) Design the principle of UAV gas hydraulic ejection system to meet the requirement of ejection index; The mechanical layout and structure of the whole machine are designed, the performance accounting of UAV gas hydraulic ejection system is completed, and the correctness of the design scheme is verified. (3) on the simulation platform of AMESim gas hydraulic system, the ejection system and deceleration system model are built. On the premise of considering the physical and mathematical models of the components, the detailed models of the main components are built. The model is simulated and debugged to verify the correctness of the model. (4) the main parameter curves are obtained by system-level simulation in AMESim. The weight of each parameter is analyzed and the influence degree of the physical parameters on the ejection of the system is obtained. (5) in order to verify the rationality of the design of the key system, on the basis of the scale valve test platform, A set of test equipment of equivalent UAV gas hydraulic ejection system is set up, and several key technologies are tested in principle. The accuracy of the model is verified by experiments on accumulator, proportional pressure relief valve and proportional directional valve, and the accuracy of the model is verified by experiments on accumulator, proportional reducing valve and proportional reversing valve. It provides the foundation for the construction of the follow-up UAV ejection virtual simulation platform.
【學(xué)位授予單位】:燕山大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2016
【分類號(hào)】:V279
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