摘要
以高超声速临近空间飞行器的连续跳跃飞行为研究对象,建立了其纵平面运动模型和弹道优化模型,在考虑攻角值、攻角变化率、法向过载、动压、热流及落地条件等约束下,利用遗传算法对一个飞行周期的跳跃飞行轨迹进行优化,并给出了燃料消耗率最小的飞行轨迹.最后与常值稳态巡航飞行进行比较分析.结果表明,连续跳跃飞行可以大量减少燃料消耗.
Jumping trajectory of the near space vehicles is studied,and its vertical plane motion model and the trajectory optimization model are established.Considering the value of the angle of attack,the rate of change of angle of attack,normal load,dynamic pressure,heat and other constraints,the genetic algorithm is used to optimize the jumping trajectory which includes one cycle,then the trajectory which cost the smallest rate of fuel is given.The results show that the jumping trajectory could save a lot of fuel ...
出处
《战术导弹技术》
2010年第5期32-35,70,共5页
Tactical Missile Technology
关键词
临近空间飞行器
跳跃飞行
轨道优化
遗传模拟退火混合算法
超燃冲压发动机
the near space vehicle
jumping trajectory
trajectory optimization
genetic and simulated annealing hybrid optimization algorithm
scramjet
