简化飞行控制律模型设计与应用方法研究  

Research on Simplified Flight Control Law Model Design and Application Method

作　　者：魏中成[1] 高正红[1] 郑遂[2] 

机构地区：[1]西北工业大学航空学院,陕西西安710072 [2]成都飞机设计研究所一室

出　　处：《飞行力学》2008年第1期35-39,共5页Flight Dynamics

摘　　要：为了在战斗机总体设计中引入飞控系统对性能和品质的协调作用,提出了简化飞行控制律设计和验证的方法,并将其应用到飞机的选型过程中。首先针对飞机概念设计与初步方案设计阶段的特点,建立了适应飞机总体设计要求的简化飞行控制律模型;然后用最优二次型跟踪器和特征结构配置方法对飞机进行控制律设计,用神经网络方法进行调参设计;最后用等效系统拟配和Simulink数值仿真方法进行验证。通过算例说明上述方法是可行的,而且能够反映飞机总体飞行的特点,简单易行,因此可以为实际飞行控制律初步设计提供参考。This paper, based-on the idea of the integration of flight dynamics and control （FD＆C） in an aircraft conceptual design process, proposes a simplified flight control law design and evaluation method which is involved in aircraft configuration design. Firstly, a simplified flight control law （SFCL） model is built by analyzing handling qualities of the bare airframe and the theory of control augmented system. Then, the SFCL the is designed using the linear quadratic tracker （LQT） and eigenstructure assignment method. Gain-scheduled is designed using the neural network technique. Finally, the designed SFCL is evaluated using the equivalent system matching and Simulink numerical simulation method. An example is given and the results of evaluation demonstrate that the method is feasible. Since the finally designed airframe/SFCL can reflect the features of fighter practical flight control, this method can also act as a reference for the preliminary design of practical flight control law.

关 键 词：飞行动力学与控制 简化飞行控制律 最优二次型跟踪器 特征结构配置 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]