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 (21): 13-14.doi: 10.3969/j.issn.1004-7530.2015.21.018

• 论文 • 上一篇    下一篇

机身壁板压缩稳定性与蒙皮有效宽度影响分析

雷一鸣   

  1. 上海飞机设计研究院强度设计研究部,上海,201210
  • 出版日期:2015-07-25 发布日期:2015-07-25

The Influence of Skin Effective Width on the Compression Stability of Fuselage Panel

Lei Yiming   

  • Online:2015-07-25 Published:2015-07-25

摘要： 民用飞机机身壁板为典型的“半硬壳式”薄壁蒙皮加筋结构，其压缩失稳应力由Johnson-Euler方程给出。压缩稳定性分析时考虑由机身长桁和有效蒙皮组成的复合截面，工程计算中常取有效蒙皮宽度为30倍蒙皮厚度（30），文章介绍了蒙皮有效宽度的算法和其影响分析。

关键词: 机身壁板, 压缩稳定性, Johnson-Euler方程, 蒙皮有效宽度

Abstract: The strain transmits to the sensitive grid through a transition area whose range is related to the test strain, which introduces variations to the sensitivity coefficient of the electric resistance strain gauge instead if a commonly considered constant. This issue analyzes the test aberration due to the variations of the sensitivity coefficient ,and offers some methods to reduce its influence.