| 有限寿命疲劳可靠度计算的新方法 |
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| 引用本文： | 赵乃素,孙志礼.有限寿命疲劳可靠度计算的新方法[J].东北大学学报(自然科学版),1992(5). |
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| 作者姓名： | 赵乃素 孙志礼 |
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| 作者单位： | 东北工学院机械二系
(赵乃素)，东北工学院机械二系(孙志礼) |
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| 摘 要： | 根据疲劳强度和可靠性理论,利用条件概率给出了有限寿命疲劳强度的可靠度计算公式。当随机变量服从正态分布时,可用数值积分求解;当随机变量不全为正态分布时,可用蒙特卡洛法求解。同时,利用本文给出的公式用迭代法可求出应力为随机变量时的可靠寿命。
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| 关 键 词： | 疲劳 可靠度 条件概率 |
A New Method of Calculating Fatigue Reliability with Limited Service Life |
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| Zhao Naisu,Sun Zhili.A New Method of Calculating Fatigue Reliability with Limited Service Life[J].Journal of Northeastern University(Natural Science),1992(5). |
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| Authors: | Zhao Naisu Sun Zhili |
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| Institution: | Zhao Naisu;Sun Zhili |
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| Abstract: | Based on the fatigue strength and reliability theories, some for-mulae to calculate the fatigue strength reliability with limited service life arederived by means of conditional probability. The solution will be of numericalintegration or of Monte Carlo method, depending on that the random variablesare all or not all obeying normal distribution,respectively. Also, these formulaeare applied to calculating the reliable life if the stresses are random variables,with iteration method utilized. |
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| Keywords: | fatigue reliability conditional probability |
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