放宽静稳定性对飞机舵面偏转速率的限制分析  

Analysis of relaxed static stability to limit the deflection rate of aircraft rudder surface

作　　者：赵昊罡 王博 刘世民[1] ZHAO Haogang;WANG Bo;LIU Shimin(The First Aircraft Institute,Xi'an 710089,China;Northwestern Polytechnical University,Xi'an 710072,China)

机构地区：[1]航空工业第一飞机设计院,西安710089 [2]西北工业大学,西安710072

出　　处：《民用飞机设计与研究》2023年第3期49-55,共7页Civil Aircraft Design & Research

摘　　要：放宽静稳定性作为主动控制技术中的一项重要技术,已在航空领域广泛普及。该技术的应用不仅可以大大提升飞机的机动性能,还可以为飞机设计方带来非常可观的经济收益。然而,随着飞机静稳定裕度的放宽,将会对飞机的稳定性带来损失,使飞机变得难以操纵,同时也会对飞机的飞控系统能力带来新的挑战。以放宽静稳定性技术对舵面偏转速率的需求限制为研究目标,首先以理论分析为基础,结合严谨的公式推导提出了一种计算舵面偏转速率需求值的方法,其次以某一飞机模型为研究对象,分别对此飞机放宽不同的静稳定裕度,最后通过仿真验证来分析放宽静稳定性对飞机舵面偏转速率需求的影响。Relaxed static stability,as an important technology in active control technology,has been widely popularized in the aviation industry.The application of this technology can not only greatly improve the maneuverability of the aircraft,but also bring considerable economic benefits to aircraft designers.However,with the relaxation of the aircraft's static stability margin,it will lose the stability of the aircraft,making it difficult to control,and also posing a new challenge to the design of flight control system.This paper takes the relaxation of the static stability technology's requirement on the deflection rate of the rudder surface as the research objective.Firstly,based on theoretical analysis,combined with rigorous formula derivation,a method for calculating the deflection rate demand value of the rudder surface was proposed,and then a certain aircraft model was taken as the research object,and different static stability margins were relaxed.Finally,the effect of relaxation of static stability on the demand of aircraft rudder surface deflection rate was analyzed through simulation verification.

关 键 词：放宽静稳定性 舵面偏转速率 仿真验证 

分 类 号：TN925[电子电信—通信与信息系统]