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ACTUATOR INFLUENCE ON FLYING QUALITIES OF A NATURALLY UNSTABLE AIRCRAFT

机译:执行器对天然不稳定飞机的速度影响

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This paper addresses the interplay of actuator properties and reduced longitudinal stability of a civil aircraft. The considered aircraft is the future concept VELA (Very Efficient Large Aircraft) which is very sensitive to centre of gravity displacements. A simple feedback controller scheduled as a function of the centre of gravity position guarantees modal handling quality specifications for a wide range of positions. Special interest is laid on aft positions because these reduce the longitudinal stability and impose a demanding task on the elevator actuator. Limits of c.o.g. positions are inferred from the interrelation of handling qualities, fluctuation of actuator deflection and slew rate during flight in turbulent atmosphere and fatigue inflicted upon the actuator.
机译:本文解决了致动器性能的相互作用,降低了民用飞机的纵向稳定性。考虑的飞机是未来概念Vela(非常有效的大型飞机),对重心位移非常敏感。作为重心位置的函数调度的简单反馈控制器可确保适用于各种位置的模态处理质量规格。特别兴趣在船尾位置铺设,因为这些稳定性降低了纵向稳定性,并在电梯执行器上施加了苛刻的任务。 C.O.G的限制。从处理质量的相互关系,在湍流气氛中飞行期间的致动器偏转和转换速率的相互关系推断出位置,致动器造成的疲劳。

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