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动力增升对翼身融合飞机沉降特性的改善

王明凯 张曙光 唐鹏 夏双枝 冯杨

王明凯, 张曙光, 唐鹏, 夏双枝, 冯杨. 动力增升对翼身融合飞机沉降特性的改善[J]. 航空动力学报, 2017, 32(11): 2752-2760. doi: 10.13224/j.cnki.jasp.2017.11.024
引用本文: 王明凯, 张曙光, 唐鹏, 夏双枝, 冯杨. 动力增升对翼身融合飞机沉降特性的改善[J]. 航空动力学报, 2017, 32(11): 2752-2760. doi: 10.13224/j.cnki.jasp.2017.11.024
Improvement of powered lifting scheme on the saggingcharacteristic of blendedwingbody aircraft[J]. Journal of Aerospace Power, 2017, 32(11): 2752-2760. doi: 10.13224/j.cnki.jasp.2017.11.024
Citation: Improvement of powered lifting scheme on the saggingcharacteristic of blendedwingbody aircraft[J]. Journal of Aerospace Power, 2017, 32(11): 2752-2760. doi: 10.13224/j.cnki.jasp.2017.11.024

动力增升对翼身融合飞机沉降特性的改善

doi: 10.13224/j.cnki.jasp.2017.11.024
基金项目: 北京航空航天大学研究生创新实践基金(YCSJ-01-2016-01)

Improvement of powered lifting scheme on the saggingcharacteristic of blendedwingbody aircraft

  • 摘要: 翼身融合体飞机起降阶段的“沉降问题”是影响该类布局飞行安全的典型问题,为此提出了一种将动力风扇竖直嵌入机翼中的动力增升方案。分析了动力增升系统对飞行的气动影响,提出了动力增升系统的匹配设计和评价方法,探讨了动力增升系统布局的主要约束。在综合考虑动力增升系统推质比、俯仰力矩配平以及操稳特性等限制因素基础上,基于示例翼身融合体无人机,匹配设计了动力增升系统及其布局方案,针对过渡飞行状态设计了姿态稳定控制律。飞行试验表明:使用动力增升能缓解进近阶段升降舵操纵所引起的下沉率突增与高度沉降现象,同时可将验证机的起、降速度降低20%以上,且该方案易于在小型翼身融合体飞机上实现。

     

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出版历程
  • 收稿日期:  2016-11-02
  • 刊出日期:  2017-11-28

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