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建立弹射系统的动态模型,为弹射起飞提供可信度高的分析设计、仿真验证平台。文章以弹力弹射系统为研究对象,建立无人机弹射起飞过程动力学、运动学模型,基于Matlab/Simulink模块,对弹性元件弹力系数、导轨长度、离架速度等参数进行了系统分析。在仿真过程中,通过改变系统的不同参数,得到了这些参数对系统弹射性能的影响规律。合理的匹配这些参数,可使用此系统弹射多种型号的无人机,提高了效率,节省了试验资源和经费。同时为无人机弹射系统优化和设计研发提供了理论依据。
The dynamic model of ejection system is established to provide highly reliable analysis and design and simulation verification platform for ejection launch. In this paper, the elastic catapult system is taken as the research object to establish the kinematics and kinematics model of the UAV during the launching process and the system parameters are analyzed systematically based on the Matlab / Simulink module, such as the elastic coefficient, the length of the guide rail and the separation speed. In the process of simulation, the influence law of these parameters on ejection performance of the system is obtained by changing the different parameters of the system. Reasonable match of these parameters, you can use this system ejection multiple types of UAV, improve the efficiency and save the test resources and funding. At the same time, it provides a theoretical basis for the optimization and design of UAV ejection system.