北京航空航天大学学报 ›› 2003, Vol. 29 ›› Issue (1): 20-22.

• 论文 • 上一篇    下一篇

一种考虑腐蚀影响的飞机结构疲劳试验方法

贺小帆, 刘文, 蒋冬滨   

  1. 北京航空航天大学 飞行器设计与应用力学系
  • 收稿日期:2001-07-06 出版日期:2003-01-31 发布日期:2010-09-27
  • 作者简介:贺小帆(1976-),男,湖北天门人,博士生,100083,北京.

Method for Fatigue Test of Aircraft StructuresConsidering Corrosion Influence

He Xiaofan, Liu Wenting, Jiang Dongbin   

  1. Dept. of Flight Vehicle Design and Applied Mechanics, Beijing University of Aeronautics and Astronautics
  • Received:2001-07-06 Online:2003-01-31 Published:2010-09-27

摘要: 考虑腐蚀环境的影响,提出了一种关于飞机结构在一般环境下的疲劳试验方法.该方法综合考虑地面停放预腐蚀和空中腐蚀疲劳对结构疲劳寿命的影响,由腐蚀环境下结构设计疲劳寿命要求和年平均飞行小时数反推出一般环境下的疲劳寿命指标,从而确定结构疲劳试验目标寿命,为结构疲劳试验提供指导,具有重要的工程实用价值.

Abstract: Considering the influence of corrosive environment, a valuable method for fatigue test of aircraft structures at room temperature and in the air is presented. The service process of an aircraft is simplified into pre-corrosion under the ground environment and corrosion fatigue during flight, and corrosion influence coefficient curves of aircraft structures are obtained. According to the damage equivalent principle, the fatigue life indexes of aircraft structures at room temperature and in the air are deduced based on the designed fatigue life index and average flight time per year under corrosive environment, so the testing object life can be determined.

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