| 基于雨流计数法的随机声疲劳寿命估算方法研究 |
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| 引用本文： | 郭小鹏,沙云东,张军.基于雨流计数法的随机声疲劳寿命估算方法研究[J].沈阳航空工业学院学报,2009,26(3):10-13,9. |
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| 作者姓名： | 郭小鹏 沙云东 张军 |
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| 作者单位： | 沈阳航空工业学院动力与能源工程学院,辽宁,沈阳,110136 |
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| 摘 要： | 针对飞机结构中的声疲劳破坏问题,以雨流计数法的基本原理和计数规则为基础,研究了雨流计数法在Mallab语言中的具体实现方法并得到载荷谱,结合材料性能S-N曲线在Miner线性累积损伤理论准则下估算结构疲劳寿命.并以某航空薄壁柱壳结构为例进行疲劳寿命估算,取得了良好的效果,从而为结构的声疲劳寿命估算提供了一种可行的方法.
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| 关 键 词： | 声疲劳 疲劳寿命 雨流计数法 薄壁结构 |
Random fatigue life estimation based on rain-flow counting method |
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| GUO Xiao-peng,SHA Yun-dong,ZHANG jun.Random fatigue life estimation based on rain-flow counting method[J].Journal of Shenyang Institute of Aeronautical Engineering,2009,26(3):10-13,9. |
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| Authors: | GUO Xiao-peng SHA Yun-dong ZHANG jun |
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| Institution: | Aircraft Power and Energy College;Shenyang Institute of Aeronautical Engineering;Liaoning Shenyang 110136 |
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| Abstract: | Interview of airplane structure sound fatigue failure question,based on the principle and regulation of rain-flow counting method,this paper establishes an elaborated programme with matlab,take a certain air of thin-walled cylindrical shell structure as an example,estimating the fatigue life by loading spectrum and S-N curve analysing.The results prove that the method has a superior skill for fatigue life estimating. |
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| Keywords: | sound fatigue fatigue life rain-flow counting method |
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