飞行力学
飛行力學
비행역학
FIIGHT DYNAMICS
2009年
6期
10-13
,共4页
大迎角/过失速敏捷性%非线性动态逆%推力矢量控制%控制效能
大迎角/過失速敏捷性%非線性動態逆%推力矢量控製%控製效能
대영각/과실속민첩성%비선성동태역%추력시량공제%공제효능
high-angle-of-attack/post-stall agility%nonlinear dynamic inverse%thrust vectoring control%control requirement
结合飞行安全和作战效能需求,对过失速战斗机的大迎角/过失速迎角下俯敏捷性指标及纵向控制效能需求进行了研究.为了满足飞行品质和过失速敏捷性指标要求,采用非线性动态逆方法设计了某推力矢量飞机快回路和慢回路飞行控制律.在此基础上,根据过失速下俯敏捷性和滚转敏捷性指标要求,对所需的最小俯仰推力矢量偏角进行了计算分析,所得结果对先进战斗机的设计有一定的参考价值.
結閤飛行安全和作戰效能需求,對過失速戰鬥機的大迎角/過失速迎角下俯敏捷性指標及縱嚮控製效能需求進行瞭研究.為瞭滿足飛行品質和過失速敏捷性指標要求,採用非線性動態逆方法設計瞭某推力矢量飛機快迴路和慢迴路飛行控製律.在此基礎上,根據過失速下俯敏捷性和滾轉敏捷性指標要求,對所需的最小俯仰推力矢量偏角進行瞭計算分析,所得結果對先進戰鬥機的設計有一定的參攷價值.
결합비행안전화작전효능수구,대과실속전두궤적대영각/과실속영각하부민첩성지표급종향공제효능수구진행료연구.위료만족비행품질화과실속민첩성지표요구,채용비선성동태역방법설계료모추력시량비궤쾌회로화만회로비행공제률.재차기출상,근거과실속하부민첩성화곤전민첩성지표요구,대소수적최소부앙추력시량편각진행료계산분석,소득결과대선진전두궤적설계유일정적삼고개치.
Considering the requirement of flight safety and combat efficiency, the pitch down agility metrics and the longitudinal control requirement for advanced post-stall aircraft at high-angle-of-attack/post-stall was discussed in this paper. In order to meet the request of both flying quality and post-stall agility, a nonlinear dynamic inverse(NDI) method was engaged to design the fast-loop and slow-loop flight control law of a thrust vectoring control aircraft. And then the min deflection of the pitch thrust vectoring that satisfied the requirement of pitch down agility and rolling agility respectively was computed by a trial and error method and a rough analytical estimate method. The results showed in the paper has some reference value to the advanced aircraft design.
