摘要
针对某一高超声速飞行器模型,对飞行器巡航中的燃料消耗进行了分析计算。首先计算了不同高度和速度下飞行器稳态巡航的燃料消耗,得到了要实现某一速度的稳态巡航,则高度必须在一定的范围内,反之亦然的结论。其次,用遗传算法优化得到周期巡航的燃料消耗,结果表明,当飞行迎角在5°附近时,周期巡航燃料消耗较少。最后,对两种巡航状态的燃料消耗进行了比较,得出周期巡航比稳态巡航节省燃料的结论。
According to a hypersonic vehicle＇s model, fuel-consumption during cruise is analyzed and calculated. First, fuel-consumption of the hypersonic vehicle during steady-state cruise is calculated aiming at different altitude and velocity. It is concluded that altitude must be among a range if the cruisers velocity is a fixed value and vice versa. Secondly, fuel-consumption during periodic-cruise is optimized by genetic algorithm. The results indicate that fuel-consumption is lesser when angle of attack is closed to 5°. After comparing the fuel-consumption between two states of cruise, it is coneluded that periodic-cruise can save fuel.
出处
《弹箭与制导学报》
CSCD
北大核心
2009年第1期184-187,共4页
Journal of Projectiles,Rockets,Missiles and Guidance
基金
国家自然科学基金(90505006)资助
关键词
稳态巡航
周期巡航
遗传算法
高超声速飞行器
steady-state cruise
periodic-cruise
genetic algorithm
hypersonic vehicle
