关键词: 疲劳, 载荷谱, 疲劳试验, 大子样, 代表起落

Abstract:

In past airplane fatigue load spectrum compiling, small samples of about 100 typical flights were usually used to represent the fleet usage, and the structure equivalent life median of the samples was used as the representative flight selecting index. The new method presented in the paper directly use a large sample of fleet usage flight data as basis in task profile representative flights selecting, and the average value of accumulated structure fatigue damage of the sample is used as the index in representative flight selecting.

Key words: fatigue,  , load , spectrum,  , fatigue , test,  , large , sample,  , representative , flight