无人机单(双)火箭助推发射安全性对比分析

Comparative Analysis of UAV Launching Safety by Using Single or Double Solid-Rocket Booster

对比研究无人机单/双火箭助推发射的安全性问题。建立无人机火箭助推发射系统三维模型;在ADAMS中分别建立单火箭和双火箭助推发射段动力学模型、在MATLAB中建立对应的飞控系统和气动参数模型,并采用联合仿真技术建立了无人机的发射段多场耦合仿真模型;对比分析无人机质心偏差对不同火箭助推发射方式的安全性影响。结果表明:双火箭助推发射安全性受无人机重心偏移量的影响明显较小,即双火箭助推发射方式对推力线的位置调整精度要求明显较低,可以降低无人机的外场保障难度。

The launching security of UAV by single or double solid-rocket booster was researched.The three dimensional model of UAV launching system was established.The launching process dynamic model of the UAV by single or twin solid-rocket booster was investigated based on ADAMS.The launching process flight control model and the aerodynamic parameter model of the UAV was investigated based on MATLAB.The Multi-field coupled and numerical simulation model on the launching process of UAV was built by co-simulation method.The influence of centroid deviation on launch safety of UAV was analyzed.The results show that the influence of centroid deviation on launch safety of UAV is significantly reduced by using the double solid-rocket boost launch technology.In other words,the requirement accuracy of thrust line adjustment is obviously reduced by using the double solid-rocket boost launch technology.Besides,the difficulty of UAV outfield support is also reduced.