CAJ | 학술논문

对无人机投放航空炸弹过程中载机、航弹间的气动干扰特性和航弹运动规律进行了数值仿真研究。为得到更加精确地结果，对现有仿真模型进行了改进：考虑了动力学模型中无人机平台在投放过程飞行姿态变化项的影响。应用此方法模拟了典型状态下基于察／打一体无人机平台的武器投放过程，以获得该过程中更为准确的无人机／航弹运动速度、姿态轨迹，及气动力等信息。算例表明基于改进模型得到的载机、导弹之间的气动干扰和其姿态等结果更加精确。
대무인궤투방항공작탄과정중재궤、항탄간적기동간우특성화항탄운동규률진행료수치방진연구。위득도경가정학지결과，대현유방진모형진행료개진：고필료동역학모형중무인궤평태재투방과정비행자태변화항적영향。응용차방법모의료전형상태하기우찰／타일체무인궤평태적무기투방과정，이획득해과정중경위준학적무인궤／항탄운동속도、자태궤적，급기동력등신식。산례표명기우개진모형득도적재궤、도탄지간적기동간우화기자태등결과경가정학。
We simulated the UAV-weapon separation process with the improved computational fluid dynamics meth-od which comprehensively considered the flying status of both UAV and released weapon.In order to study the aero-dynamic interference and the rules of weapon movement more accurately, dynamic grid approach was used coupled with an unsteady Euler flow solver.6-DOF models of both UAV and weapon were fully integrated into the CFD solu-tion procedure to determine the body dynamics.And we presented the simulation results of a weapon launching process using developed numerical methods.Major trends of the separation were captured.The computation results and their analysis showed preliminarily the accuracy of the improved method.