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主要研究了动态分配算法在推力矢量飞机上的应用。首先对该推力矢量飞机基于时标分离原理建模,控制系统分为快、慢回路。执行器的动态特性设为一阶惯性环节。然后分析了动态控制分配的算法及求解过程,并对该算法的动态特性和稳态特性做了必要的证明。针对推力矢量飞机包括传统舵面及推力矢量舵面在内的执行器的动态特性,对其进行了动态控制分配的仿真。仿真结果表明,高频执行器在机动过程中的使用程度相对增加了,飞行器跟踪姿态角指令更敏捷;推力矢量舵面偏转速率保持较小水平,有利于延长发动机的使用寿命。动态控制分配在推力矢量飞行器上的应用取得了良好的效果。
Mainly studied the dynamic allocation algorithm in thrust vector aircraft. First, the thrust vector aircraft modeling based on the principle of time-scale separation, the control system is divided into fast and slow loop. The dynamic behavior of the actuator is set to first-order inertia. Then, the algorithm of dynamic control assignment and its solution process are analyzed, and the necessary dynamic and steady-state characteristics of the algorithm are proved. According to the dynamic characteristics of thrust vector aircraft actuators including traditional rudder surfaces and thrust vector rudder surfaces, a dynamic control distribution simulation is carried out. The simulation results show that the use of high-frequency actuators in the maneuvering process is relatively increased, and the flight attitude tracking command is more agile. The deflection of the thrust vector rudder maintains a small level, which is beneficial to prolong the service life of the engine. Dynamic control of distribution in the thrust vector aircraft has achieved good results.