基于视景模拟的无人机导弹发射仿真

摘要

During one side missile launching, Unmanned Aerial Vehicle ( UAV) many characteristics such as weight char-acteristics, center of gravity, aerodynamic characteristics will be changed. Disturbance moments will be generated, which may influence the security of UAV. Under such circumstance, UAV need to maintain a steady flight with flight control sys-tem. To solve this problem, UAV six degrees of freedom nonlinear dynamic model, flight control system model, engine mod-el, gravity model, standard atmosphere model and flight gear software interface are established in Matlab/simulink to simu-late the launching process. Visual simulating technology is used to obtain a straight and apparent view of the results. The dy-namics results of the UAV during this launching process such as recovering to a stable attitude and keeping the specified flight path can be analyzed easily. The simulation results imply that the UAV platform can accomplish missile launching mis-sion successfully, safely and effectively.%无人机单侧导弹发射后，无人机重量特性、重心位置、气动特性发生变化并同时产生附加的干扰力矩，无人机需要在控制系统作用下尽快恢复稳态飞行。通过在Matlab/Simulink中建立无人机六自由度非线性力学模型、控制系统模型、发动机模型、重力模型、标准大气模型、flight gear软件接口等，模拟仿真无人机单侧导弹发射过程，同时将仿真结果进行可视化视景输出，确保无人机系统平台在导弹发射过程中无人机能够很快恢复稳定姿态并按照预定轨迹飞行。视景模拟仿真结果表明：该无人机平台能够顺利完成导弹的安全发射。