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航空学报  2013 

小展弦比飞翼布局航向控制的组合舵面研究

DOI: 10.7527/S1000-6893.2013.0161, PP. 2435-2442

Keywords: 飞翼布局,航向控制,组合舵面,嵌入式阻力舵,数值模拟

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Abstract:

航向控制是飞翼布局设计急需解决的关键技术之一。采用数值模拟方法,研究了小展弦比飞翼布局嵌入式阻力舵(SSD)的航向操纵及其耦合特性,针对滚转力矩大等耦合气动问题,提出了一种由嵌入式阻力舵与升降副翼构成的航向操纵组合舵面。研究了组合舵面的航向操纵规律及其耦合特性,揭示了其流动机理。研究结果表明组合舵面具有很强的航向操纵和解耦能力,通过阻力舵偏度与升降副翼偏度的优化匹配,可显著减小或消除耦合滚转,使升力与俯仰特性得到恢复,很好地解决了小展弦比飞翼布局航向操纵及其耦合问题,具有舵面少、效率高等特点,是无尾布局航向控制的有效手段,应用前景广阔。

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