| 飞机起落架结构模糊疲劳可靠性分析 |
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| 引用本文： | 蒋文涛,薛彩军.飞机起落架结构模糊疲劳可靠性分析[J].飞机设计,2011,31(1):17-20. |
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| 作者姓名： | 蒋文涛 薛彩军 |
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| 作者单位： | 南京航空航天大学飞行器先进设计技术国防重点学科实验室; |
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| 摘 要： | 应用模糊数学方法对常规疲劳可靠性分析方法无法处理的模11?性不确定性问题进行描述,以某型飞机前起落架为例,根据起落架的试验载荷谱进行疲劳损伤分析.在此基础上,建立了基于Miner线性疲劳累积损伤及模糊数学理论的"累积损伤一临界损伤"动态于涉模型,定量分析起落架可靠性随疲劳寿命的变化规律.
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| 关 键 词： | 起落架 结构可靠性 模糊数学 疲劳寿命 |
Fuzzy Fatigue Reliability Analysis of a Landing Gear Structure |
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| JIANG Wen-tao,XUE Cai-jun.Fuzzy Fatigue Reliability Analysis of a Landing Gear Structure[J].Aircraft Design,2011,31(1):17-20. |
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| Authors: | JIANG Wen-tao XUE Cai-jun |
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| Institution: | JIANG Wen-tao,XUE Cai-jun(Key Laboratory of Fundamental Science for National Defence-Advanced Design Technology of Flight Vehicle,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | Fuzzy mathematics theory is used to describe the model uncertainty which could not be solved by conventional fatigue reliability method.Taking an nose landing gear for example,the three-dimensional model is firstly created as the basis.Then,the cumulative damage-critical damage dynamic interference model based on the Miner linear cumulative fatigue damage theory is established.Finally,the variable reliability along with the of fatigue life of the landing gear be obtained. |
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| Keywords: | landing gear structural reliability fuzzy mathematics fatigue life |
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