基于JSBSim的通用空中目标机动仿真模型设计及实现

Design and Implementation of General Target Aircraft Maneuver Simulation Model Based on JSBSim

为解决空空导弹试验鉴定数字仿真中目标模型机动样式少、可扩展性差的问题,本文开展了六自由度空中目标机动仿真模型的设计和实现。设计了不同目标机动方式下的法向过载、切向过载、滚转角过载控制律模型;设计了从三个通道过载解算飞机升降舵、副翼及油门杆操纵指令之间关系的控制模型;基于开源、开放的飞行动力学模型框架JSBSim开展目标机动仿真模型的实现。研究的仿真模型应用于某型空空导弹鉴定的全数字仿真试验中,比对结果表明,目标模型的仿真机动轨迹与预期机动样式及机动参数较为吻合。

In the digital simulation for the test and evaluation of the air-to-air missile,the problem of poor scalability and limited maneuver type of target aircraft model is outstanding.To resolve the above problem,the design and implementation of a six-degree-of-freedom target aircraft maneuvers simulation model is presented.Firstly,the control laws of normal overload,tangential overload and roll angle overload under different target maneuvers are designed.Then,the control models of elevator,aileron and throttle of target aircraft are designed.Finally,the implementation of target maneuver simulation model based on open source dynamic model framework of JSBSim is put forward.The target aircraft simulation model is applied to the digital simulation for the test and appraisal of an air-to-air missile,and the result shows that maneuver trajectories of target model are consistent with the expected maneuver type and parameters.