| 工程机械结构的概率疲劳强度估算方法 |
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| 引用本文： | 王少华,孙训方.工程机械结构的概率疲劳强度估算方法[J].机械工程学报,1994,30(1):62-68. |
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| 作者姓名： | 王少华 孙训方 |
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| 作者单位： | 西南交通大学 |
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| 摘 要： | 通过对金属材料表面微单元体疲劳损伤随机演化的分析，建立了一种基于表面微单元体串联概率失效模型的构件概率疲劳强度估算方法。利用本方法对构件疲劳强度、疲劳寿命分布规律、疲劳尺寸系数等疲劳试验结果进行的验证计算表明，计算具有较高的估算精度。
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| 关 键 词： | 工程机械 估算 结构 可靠性 疲劳强度 |
PREDICTION METHOD OF PROBABILISTIC FATIGUE STRENGTH ON THE STRUCTURE OF CONSTRUCTION MACHINERY |
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| Wang Shaohua, Sun Xunfang.PREDICTION METHOD OF PROBABILISTIC FATIGUE STRENGTH ON THE STRUCTURE OF CONSTRUCTION MACHINERY[J].Chinese Journal of Mechanical Engineering,1994,30(1):62-68. |
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| Authors: | Wang Shaohua Sun Xunfang |
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| Affiliation: | Southwestern Jiaotong University |
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| Abstract: | An analysis of the fatigue stochastic damage process was introduced. Then the method predicting probabilistic fatigue strength has been established on the basis of series failure model of snrface elements. Many verifications of fatigue testing results indicate that the method has better precision than that of usual fatigue calculation has. |
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| Keywords: | Construction machinery Structure Fatigue strength Prediction Reliability |
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