In order to ensure structural safety in the design working life, it is necessary to carry out integrity analysis of fatigue and to evaluate the degree of fatigue damage on the structure.
为了保证结构在设计寿命期内的安全使用，有必要对结构进行整体疲劳分析，评估其在设计年限内的疲劳损伤程度。
It is well suited for monitoring in line production in structural components for the aerospace about detection of damage and progressive fatigue damage.
从这个现象中获得的信息表明，它非常适宜应用到宇航结构件在生产线的无损检测和疲劳损伤预报。
In this paper, some analysis and study have been done about the accidents, I found that a considerable portion of these accidents are due to structural damage caused by fatigue.
本文对多起塔式起重机事故进行了分析研究，发现这些事故中有相当一部分是由于结构的疲劳破坏引起的。
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