| 微动疲劳寿命可靠性分析方法 |
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| 引用本文： | 崔海涛,汪震,温卫东,徐颖.微动疲劳寿命可靠性分析方法[J].航空动力学报,2009,24(6):1279-1283. |
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| 作者姓名： | 崔海涛 汪震 温卫东 徐颖 |
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| 作者单位： | 南京航空航天大学,能源与动力学院,南京,210016 |
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| 摘 要： | 针对结构的微动疲劳问题,发展了一种寿命可靠性分析方法.在微动条件下,接触区域处于多轴应力状态,采用基于临界平面法的多轴疲劳参数对结构的微动疲劳寿命进行预测.在确定性寿命计算的基础上,考虑弹性模量、摩擦系数以及寿命预测模型中材料常数的随机性,利用响应面方法,结合Monte-Carlo模拟技术获得结构微动疲劳寿命可靠性模型.最后将此方法用于燕尾榫结构的微动疲劳寿命可靠性分析,验证了所提出方法的可行性和有效性.
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| 关 键 词： | 微动疲劳寿命 可靠性 临界平面法 Monte-Carlo法 燕尾榫 |
| 收稿时间： | 6/3/2008 12:00:00 AM |
| 修稿时间： | 2008/10/15 0:00:00 |
Reliability analysis method of fretting fatigue life |
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| CUI Hai-tao,WANG Zhen,WEN Wei-dong and XU Ying.Reliability analysis method of fretting fatigue life[J].Journal of Aerospace Power,2009,24(6):1279-1283. |
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| Authors: | CUI Hai-tao WANG Zhen WEN Wei-dong and XU Ying |
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| Institution: | College of Energy and Power Engineering;Nanjing University of Aeronautics and Astronautics;Nanjing 210016;China |
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| Abstract: | A fretting fatigue reliability analysis method was developed.The contact area was in a multi-axial stress state under fretting conditions.The multi-axial fatigue parameter based on the critical plane was used to predict the fretting fatigue life.On the basis of calculating determinate life,the randomicity of modulus of elasticity,friction coefficient and material constant in the life model were considered,and the fretting fatigue life reliability model was obtained by Monte-Carlo simulation method along wit... |
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| Keywords: | fretting fatigue life reliability critical plane Monte-Carlo method dovetail joints |
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