考虑日历环境影响的结构日历寿命研究

Research Calendar Life of Aircraft Structure Considering the Effects of Calendar Environment

为科学地确定飞机结构的日历寿命 ,本文认为飞机结构的损伤历程是地面停放环境和空中疲劳载荷协同作用的结果 ,并提出以动态的S—N曲线为基础 。

For determining calendar life of aircraft structure, the damage of the aircraft structure resulted from the synthesis effect of ground parking environment and fatigue load is proposed in the paper. On basis of dynamic S N curve, traditional nominal stress method and Miner theory, this paper puts forward the method that was applied to estimate the calendar life of aircraft structure.