Control Strategy of Aileron’s Force-fight
Control Strategy of Aileron’s Force-fight
复制标题
副翼力斗控制策略
DOI：
10.14257/ijmue.2014.9.8.28
复制
发表时间：
2014
影响因子：
5.6
通讯作者：
Zhaohui Yuan
中科院分区：
文献类型：
--
作者：
Ying Zhang;Zhaohui Yuan
由于采用了冗余驱动系统，副翼平面上出现了力对抗现象，加速了舵面材料的疲劳，导致舵面功率损失。必须采取有效措施减少或消除这种现象。在分析副翼控制结构的基础上，对控制系统进行了精确建模，并考虑了系统的非线性环节。通过实验验证了模型的正确性。然后从静态和动态两个方面考虑了减小战斗力的控制策略。采用纯积分部分力平衡的方法，即利用各通道压差的积分对位移控制信号进行补偿，仿真结果表明，该方法基本上可以消除静态战斗力。同时为了减小动态过程中的战斗力，在静态策略的基础上，采用PID控制器进行力平衡。该方法可以实现动态过程中的位移补偿。仿真结果表明，采用PID控制策略后，基本上可以消除静态战斗力，动态战斗力可降低80%左右。
Due to adopting redundant actuation system, force-fight phenomenon appears on aileron’s plane, which would accelerate the fatigue of rudder surface material and loss power. Effective measures must be taken to reduce or eliminate this phenomenon. On the basis of analyzing the control structure of aileron, precisely modeling the control system, and taking system’s nonlinear links into account. The correctness of the model is verified by experiment. Then control strategy of reducing the fighting-force is considered from two aspects of both static and dynamic. The method of using the force equilibrium with pure integral part is to use the integral of each channel’s pressure differential to compensate the displacement control signal; The simulation results show that this method can basically eliminate static fighting-force. In order to reduce the fighting-force during dynamic process at the same time, adopting the PID controller for force equilibrium on the basis of static policy. This method can realize the displacement compensation during the dynamic process. The simulation results show that, after adopting the PID control strategy, the static fighting-force can be eliminated basically, and the dynamic fightingforce can be reduced by about 80%.