| 随机疲劳寿命可靠性分析的功率谱法及其应用 |
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| 引用本文： | 姚昌仁 王连平. 随机疲劳寿命可靠性分析的功率谱法及其应用[J]. 兵工学报, 1993, 14(2): 33-38 |
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| 作者姓名： | 姚昌仁 王连平 |
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| 作者单位： | 北京理工大学(姚昌仁，王连平)，北京理工大学(唐国梁) |
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| 摘 要： | 推导了两个平稳随机过程的互功率谱密度函数和导出过程的互功率谱密度函数之间的关系式，建立了平面应力状态下的随机疲劳寿命可靠性分析功率谱法的数学模型，编制了相应的计算机软件，并介绍了它在解决重型越野车桥壳断裂时的应用情况。
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| 关 键 词： | 疲劳寿命 可靠性 功率谱法 汽车 |
METHOD OF POWER SPECTRUM DENSITY ANALYSIS FOR RANDOM FATIGUE LIFE PROBABILITY AND ITS APPLICATIONS |
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| Yao Changren Wang Lianping Tang Guoliang. METHOD OF POWER SPECTRUM DENSITY ANALYSIS FOR RANDOM FATIGUE LIFE PROBABILITY AND ITS APPLICATIONS[J]. Acta Armamentarii, 1993, 14(2): 33-38 |
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| Authors: | Yao Changren Wang Lianping Tang Guoliang |
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| Affiliation: | Beijing Institute of Technology |
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| Abstract: | Formulas giving the relationship between the cross P. S. D of two static random processes and the P. S. D of their derived processes are derived, and the mathematical model of radom fatigue life probability under the conditions of plane stresses is established. A computer program for this model is developed and its applications in the design of heavy trucked vehicles discussed. |
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| Keywords: | fatigue life probability power spectrum density (PSD) random process probabilistic design veliability design |
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