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首页> 外文会议>AIAA Guidance, Navigation and Control Conference Pt.1, Aug 1-3, 1994, Scottsdale, AZ >Stability Augmentation Design of a Large Subsonic Transport
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Stability Augmentation Design of a Large Subsonic Transport

机译：大型亚音速运输机的稳定性增强设计

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摘要

Flight control laws for commercial aircraft have traditionally been designed using classical methods. This is adequate for rigid statically stable airplanes controlled by mechanical and hydraulic means. The challenge increases as pitch stability is reduced and structural flexibility is increased. This paper demonstrates the practical application of modern linear quadratic methods to stability augmentation system synthesis for a large subsonic transport. Stability, robustness, handling qualities, and dynamic load requirements under discrete and random gusts are addressed. The approach evolves from the traditional LQR methods to the synthesis of robust low-order controllers of a given structure with parameter optimization. The design is accomplished with aeroelastic models at flight conditions ranging from a low-speed takeoff to a highspeed cruise with forward and aft c.g. configurations.
机译：传统上，商用飞机的飞行控制法是使用经典方法设计的。这对于通过机械和液压装置控制的刚性静态稳定飞机已经足够。随着间距稳定性的降低和结构灵活性的提高，挑战也随之增加。本文演示了现代线性二次方法在大型亚音速运输稳定性增强系统综合中的实际应用。解决了离散和随机阵风下的稳定性，鲁棒性，处理质量和动态负载要求。该方法从传统的LQR方法演变为具有参数优化功能的给定结构的鲁棒低阶控制器的合成。该设计是通过在从低速起飞到向前和向后c.g.配置。

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