Study on Influence of Blowing Boundary Layer Control System on Weight and Balance of Amphibious Aircraft

XIA Mingguang; DAI Shilong; CHENG Zhihang; LIU Xuan

doi:10.16080/j.issn1671-833x.2020.20.086

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Study on Influence of Blowing Boundary Layer Control System on Weight and Balance of Amphibious Aircraft

更新时间：2025-10-30

- Study on Influence of Blowing Boundary Layer Control System on Weight and Balance of Amphibious Aircraft
- Aeronautical Manufacturing Technology Vol. 63, Issue 20, Pages: 86-92(2020)
- 作者机构：
  
  中航通飞华南飞机工业有限公司,珠海,519040
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2020.20.086
  CLC：
- Published：2020
- 稿件说明：
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夏明广，戴诗龙，程志航，刘玄. 吹气式附面层控制系统对水陆两栖飞机的重量与平衡影响研究[J]. 航空制造技术, 2020, 63(20): 86-92.

XIA Mingguang, DAI Shilong, CHENG Zhihang, LIU Xuan. Study on Influence of Blowing Boundary Layer Control System on Weight and Balance of Amphibious Aircraft. Aeronautical Manufacturing Technology, 2020, 63(20): 86-92.
夏明广，戴诗龙，程志航，刘玄. 吹气式附面层控制系统对水陆两栖飞机的重量与平衡影响研究[J]. 航空制造技术, 2020, 63(20): 86-92. DOI： 10.16080/j.issn1671-833x.2020.20.086.

XIA Mingguang, DAI Shilong, CHENG Zhihang, LIU Xuan. Study on Influence of Blowing Boundary Layer Control System on Weight and Balance of Amphibious Aircraft. Aeronautical Manufacturing Technology, 2020, 63(20): 86-92. DOI： 10.16080/j.issn1671-833x.2020.20.086.

摘要

针对吹气式附面层控制系统可提高飞机起降过程中翼面及舵面的最大升力系数，重点开展最大升力系数提高对水陆两栖飞机着水载荷影响导致的飞机船体及浮筒结构减重研究，设计了一种吹气式附面层控制系统布局方案，估算了该设计方案的吹气系统重量与重心数据，分析了最大升力系数提高对飞机船体着水载荷系数及压力分布的影响，应用了工程估算方法评估着水载荷变化对飞机船体及浮筒的重量与重心影响。结果显示加装吹气系统后，某型水陆两栖飞机着水载荷降低 26.4%，船体及浮筒结构可减重 15.3%，船体及浮筒结构减重量与加装吹气系统的增重量近似相等，飞机重量性能无损失。

Abstract

The blowing boundary layer control system can improve the maximum lift coefficient of the wing and rudder surfaces in the process of taking off and landing

however

the increase of maximum lift coefficient can reduce the water landing load of amphibious aircraft. The influence of water landing load of amphibious aircraft on the weight of aircraft hull and float structure was researched. A layout of the blowing boundary layer control system was designed. The weight and center data of the blowing boundary layer control system were estimated. The influence of the increase of maximum lift coefficient on the distribution of waterlanding load was analyzed. The influence of the waterlanding load variation on the weight and center of aircraft hull and float was evaluated by engineering estimation method. After the installation of the blowing boundary layer control system

the water landing load of a amphibious aircraft is reduced by 26.4%

the weight of the hull and float structure can be reduced by 15.3%

the weight reduction of the hull and float structure is approximately the same as that of adding the blowing boundary layer control system

no loss of aircraft weight and balance performance.

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