江苏省科技期刊可视化阅读平台

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江苏科技信息 ›› 2015, Vol. 32 ›› Issue (3): 63-65.doi: 10.3969/j.issn.1004-7530.2015.03.020

• 论文 • 上一篇    下一篇

缝翼尾缘预弯曲设计

匡国强, 季佳佳, 何志全   

  1. 上海飞机设计研究院,上海,201210
  • 出版日期:2015-01-25 发布日期:2015-01-25

Slat Trailing Edge Pre-bending Shaped Design

Kuang Guoqiang, Ji Jiajia, He Zhiquan   

  • Online:2015-01-25 Published:2015-01-25

摘要： 缝翼尾缘受气动力作用，尾缘与固定前缘蒙皮缝道间隙过大，影响气动性能。文章创新设计预弯曲尾缘，装配时产生向下回复力，抵消部分气动力，减小缝道间隙。依据缝翼翼面刚度、气动载荷，采用有限元计算尾缘预弯后的回复力、缝道间隙，考虑缝翼收放时的摩擦阻力和安装装配工艺，设计预弯曲变形的缝翼尾缘。

关键词: 缝翼尾缘, 预弯变形, 气动性能

Abstract: Under the aerodynamic pressure of slats, the length of gap between slat trailing edge and cover skin of leading edge are too much, which would affect aerodynamic performance. An innovational approach is the pre-bending shaped design for trailing edge, which could produce the downward restoring force in assembly to resist partial aerodynamic pressure, in order to reduce the length of gap. The pre-bending shaped measure could be designed on basic of the stiffness and aerodynamic pressure condition of slats and restoring force and updated gap length of new configuration calculated by FEM, considering the friction force of forced assembly structure and the assembly manufacturing.