基于Paris解的直升机动部件损伤容限分析
Helicopter Technique(2013)
Abstract
直升机金属动部件是单路传力结构,承受高周疲劳载荷,一般认为不适合采用损伤容限设计,但对多个螺栓连接的大型接头,有较好的损伤容限特性。文章根据线弹性断裂力学Paris理论,提出了一套适合直升机动部件的损伤容限分析方法,通过对某型机尾桨叶接头进行损伤容限分析,得出了具有高可靠度的较长的裂纹扩展寿命。
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Key words
high cycle,Paris theory,damage tolerance
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