放宽静稳定性大型客机纵向控制增稳系统设计  

Control augmentation system design for a large jet with relaxed static stability

作　　者：李乐尧[1] 李俨[1] 王新民[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710129

出　　处：《飞行力学》2010年第4期25-28,共4页Flight Dynamics

摘　　要：针对大型客机放宽静稳定性后纵向稳定性和操纵品质不足等问题,采用LQG/LTR理论及方法设计了一种纵向控制增稳系统,并通过典型重心位置和飞行阶段的仿真,表明该系统具有比经典控制增稳系统更为理想的增稳效果、鲁棒性、抗干扰能力和操纵品质。A control augmentation system has been designed based on the LQG/LTR method for a large jet to heal the degeneration of longitudinal stability and handling qualities of the plane due to static-stability relaxing.The dynamic responses,robustness,turbulence endurance,and handling qualities of this system have been verified through simulant test under different flight conditions and over a wide range of c.g.locations.Testing results show that the RSS airplane could achieve more satisfactory longitudinal stability and control characteristics with this system than with traditional control augmentation systems.

关 键 词：控制增稳系统 放宽静稳定性 线性二次高斯/回路传输恢复 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]