西北工业大学学报
西北工業大學學報
서북공업대학학보
JOURNAL OF NORTHWESTERN POLYTECHNICAL UNIVERSITY
2015年
1期
104-109
,共6页
攻角%计算机仿真%阻尼%密度%阻力系数%电子制导系统%反馈线性化%函数%升力%马赫数%固有频率%跟踪(位置)%速度%吸气式飞行器%主动段%轨迹设计
攻角%計算機倣真%阻尼%密度%阻力繫數%電子製導繫統%反饋線性化%函數%升力%馬赫數%固有頻率%跟蹤(位置)%速度%吸氣式飛行器%主動段%軌跡設計
공각%계산궤방진%조니%밀도%조력계수%전자제도계통%반궤선성화%함수%승력%마혁수%고유빈솔%근종(위치)%속도%흡기식비행기%주동단%궤적설계
提出了一种水平起飞吸气式组合动力飞行器的爬升轨迹设计方法。将爬升轨迹分为起飞爬升段、等动压段和等热流段，分别考虑过载、动压、热流约束，在高度-速度剖面内给出了轨迹设计的约束边界，以及3个飞行段的爬升轨迹设计方法，并利用反馈线性化方法设计了参考轨迹的跟踪制导律。仿真结果表明，参考轨迹能够满足各种飞行约束，可准确跟踪，为吸气式组合动力飞行器主动段的爬升轨迹提供一种可行的设计方法。
提齣瞭一種水平起飛吸氣式組閤動力飛行器的爬升軌跡設計方法。將爬升軌跡分為起飛爬升段、等動壓段和等熱流段，分彆攷慮過載、動壓、熱流約束，在高度-速度剖麵內給齣瞭軌跡設計的約束邊界，以及3箇飛行段的爬升軌跡設計方法，併利用反饋線性化方法設計瞭參攷軌跡的跟蹤製導律。倣真結果錶明，參攷軌跡能夠滿足各種飛行約束，可準確跟蹤，為吸氣式組閤動力飛行器主動段的爬升軌跡提供一種可行的設計方法。
제출료일충수평기비흡기식조합동력비행기적파승궤적설계방법。장파승궤적분위기비파승단、등동압단화등열류단，분별고필과재、동압、열류약속，재고도-속도부면내급출료궤적설계적약속변계，이급3개비행단적파승궤적설계방법，병이용반궤선성화방법설계료삼고궤적적근종제도률。방진결과표명，삼고궤적능구만족각충비행약속，가준학근종，위흡기식조합동력비행기주동단적파승궤적제공일충가행적설계방법。
Air-breathing combined cycle propulsion is a promising thruster for aerospace vehicle in the future.Since trajectory has an important influence on the performance of the propulsion, reasonable trajectory design is necessary.Supposing that the aerospace vehicle takes off horizontally and powered by air-breathing combined cycle propulsion, this paper divides the ascent climbing trajectory into three phases: take-off climbing phase, constant dynamic pressure phase and constant heating rate phase.Considering the constraints of load, dynamic pressure and heating rate, we put forward respectively trajectory design methods for the three phases.Finally, the tracking law of the reference trajectory is derived with the feedback linearization method.The simulation results and their analysis show preliminarily that the designed reference trajectory is able to satisfy the constraints and to do tracking well.
