| 随机疲劳分析在机载设备疲劳寿命预测中的应用 |
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| 引用本文： | 王长武,张幼安. 随机疲劳分析在机载设备疲劳寿命预测中的应用[J]. 中国机械工程, 2004, 15(21): 1906-1908 |
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| 作者姓名： | 王长武 张幼安 |
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| 作者单位： | 南京第十四研究所第五研究部,南京,210013 |
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| 摘 要： | 提出采用宽带随机振动疲劳寿命数值分析方法在产品设计阶段预测其宽带随机振动疲劳寿命来保证设计方案的首次成功率，并以在宽带随机振动环境下工作的某产品的疲劳寿命设计为例，阐述了整个随机振动疲劳数值仿真分析流程，得到了与试验相吻合的仿真结果，证明了在设计阶段预测产品的疲劳寿命并进行优化是可行的。
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| 关 键 词： | 机载设备 随机振动 疲劳 有限元方法 PSD |
| 文章编号： | 1004-132X(2004)21-1906-03 |
Applications of Fatigue Analysis on Random Vibration for Fatigue Life Forecast of Airborne Equipment |
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| Abstract: | Fatigue life Forecast of airborne equipment during product design, based on fatigue numerical analysis of wide band random vibration, was brought out to ensure the rate of success at first time of projects. The fatigue life design of a product working in a wide band random vibration environment, was taken as an example to expatiate the full flow of random vibration fatigue numerical analysis. simulation results are obtained and consistent with test ones. It shows that fatigue life forecast of product during product design is very necessary and feasible. |
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| Keywords: | airborne equipment random vibration fatigue FEM:PSD |
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