火箭助推零长发射建模仿真研究

Modeling and Simulation Research on Rocket Boosted Zero-length Launching

火箭助推零长发射是一种常见的无人机发射方式。此发射方式不受起飞场地的约束,机动性强,扩大了无人机的使用范围。以某无人机为研究对象,重点分析研究发射过程中无人机受到的气动力、重力、螺旋桨作用力、助推火箭作用力及其产生的力矩,并在Matlab/simulink中建立火箭助推零长发射的仿真平台。仿真结果可以真实反映无人机的发射状态,根据发射过程中无人机的速度、高度、姿态以及舵面的偏转情况,可以判断发射过程是否安全,由此为发射提供重要的参考依据。

According to the zero-length launch principle,launching the UAV with the rocket booster is a common way to takeoff. This launching method is not limited by the takeoff field,and has strong maneuverability. At the same time,it also extends the UAV’s scope of application. Based on certain UAV as the research object,this paper focuses on analyzing the aerodynamic force,gravity,propeller force,rocket booster force and moments in the process of launch. And also the rocket launch platform in Matlab/simulink is established.The simulation result truly can reflect the launching state of UAV. The simulation results of speed,height,attitude of UAV and the deflection of the control surface,can be used to determine whether the launching process is safe or not. The conclusion can provide important reference for safe launching.