Applications of Inverse Flight Dynamics
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摘要: 考察了求解输入类飞行逆动力学问题的微分-迭代与积分-迭代算法; 探讨了利用逆动力学确定过失速机动操纵效能要求问题,这构成了进一步提出过失速机动飞机设计简化判据的数值基础; 利用逆动力学设计机动发生模块进行飞控系统的最外环控制,以便跟踪期望的复杂机动轨迹.飞机最速反向示例及其它数值仿真结果表明设计思想与算法是可行的.Abstract: Two computational techniques for inverse fight dynamics, namely derivation-iteration and integration-iteration techniques, are investigated.The application of inverse dynamics to determine control power requirements for post-stall maneuvering is researched, and a maneuvering flight trajectory based algorithm is provided, which lays a numerical foundation for simplifying design criteria for post-stall aircraft.With the model of inverse dynamics employed, a flight control mode for the outermost loop of the control system, named maneuver generator, is designed to follow desired complicated maneuvering flight trajectories.An example of rapid heading-reversal maneuver and other numerical simulations show the feasibility of the algorithm and the design idea.
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Key words:
- inverse problem /
- controllability /
- flight control /
- control power requirements /
- maneuver generator
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1. de Matteis G, de Socio L M,Leonessa A.Solution of aircraft inverse problems by local optimization.J Guidance, Control and Dynamics, 1995,18(3):567~571 2. Abdelrahman M M, Al-Bahi A M.A generalized technique for the inverse simulation of aircraft motion along predetermined trajectories.AIAA-94-3523-CP,1994 3. Snell S A, Enns D F, Garrard W L.Nonlinear control of a supermaneuverable aircraft.AIAA-89-3486-CP,1989 4. 张曙光.过失速机动飞机飞行、设计准则与控制研究:[博士后研究工作报告].北京:北京航空航天大学飞行器设计与应用力学系,1997 -
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