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确定飞机结构WFD平均行为的寿命升降法

张健萍 时新红 张建宇 郑晓玲

张健萍, 时新红, 张建宇, 等 . 确定飞机结构WFD平均行为的寿命升降法[J]. 北京航空航天大学学报, 2016, 42(1): 147-151. doi: 10.13700/j.bh.1001-5965.2015.0056
引用本文: 张健萍, 时新红, 张建宇, 等 . 确定飞机结构WFD平均行为的寿命升降法[J]. 北京航空航天大学学报, 2016, 42(1): 147-151. doi: 10.13700/j.bh.1001-5965.2015.0056
ZHANG Jianping, SHI Xinhong, ZHANG Jianyu, et al. Life up and down method for determining WFD average behavior of aircraft structures[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(1): 147-151. doi: 10.13700/j.bh.1001-5965.2015.0056(in Chinese)
Citation: ZHANG Jianping, SHI Xinhong, ZHANG Jianyu, et al. Life up and down method for determining WFD average behavior of aircraft structures[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(1): 147-151. doi: 10.13700/j.bh.1001-5965.2015.0056(in Chinese)

确定飞机结构WFD平均行为的寿命升降法

doi: 10.13700/j.bh.1001-5965.2015.0056
详细信息
    作者简介:

    张健萍女,博士。主要研究方向:结构疲劳可靠性。Tel.:010-82544147E-mail:jpzhang@live.com;张建宇男,博士,教授。主要研究方向:结构疲劳可靠性。Tel.:010-82338663E-mail:jyzhang@buaa.edu.cn

    通讯作者:

    张建宇,Tel.:010-82338663E-mail:jyzhang@buaa.edu.cn

  • 中图分类号: V221+.6;O342

Life up and down method for determining WFD average behavior of aircraft structures

  • 摘要: 广布疲劳损伤(WFD)问题严重威胁飞机结构的完整性和安全性,为确定支持飞机结构广布疲劳损伤评定和维修大纲的有效性限制,需要先确定飞机结构的广布疲劳损伤平均行为。以疲劳应用统计学中强度升降法的理论为基础,提出了确定飞机结构广布疲劳损伤平均行为的寿命升降法,在不同寿命级上进行疲劳试验,继而进行剩余强度试验,判断剩余强度是否满足要求,当相邻2个寿命级上出现相反结果时,取2个寿命均值为正好满足剩余强度的寿命,重复试验并统计分析得到广布疲劳损伤平均行为。以5细节多部位损伤结构为例,采用提出的寿命升降法,测得了其在指定载荷条件和剩余强度下的广布疲劳损伤平均行为。提出的寿命升降法以疲劳可靠性为理论基础,不依赖于结构的具体形式和受载情况,对多部位损伤和多元件损伤结构均适用。

     

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出版历程
  • 收稿日期:  2015-01-27
  • 刊出日期:  2016-01-20

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