| 变幅载荷下的有限寿命疲劳设计方法和设计数据 |
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| 引用本文： | 赵少汴.变幅载荷下的有限寿命疲劳设计方法和设计数据[J].机械设计,2000,17(1):5-8. |
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| 作者姓名： | 赵少汴 |
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| 作者单位： | 机械工业部郑州机械研究所先进制造技术研究中心,河南,郑州,450052 |
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| 摘 要： | 本文论述了变幅载荷下的有限寿命疲劳强度评价方法与寿命估算方法，给出了用Ｍｉｎｅｒ法则、修正Ｍｉｎｅｒ法则和Ｃｏｒｔｅｎ－Ｄｏｌａｎ理论进行疲劳强度评价和寿命估算的方法和计算公式。最后，还用４种零构件进行随机疲劳试验对三种累积损伤理论的疲劳强度评价和寿命估算精度和这生进行了验证和对比。
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| 关 键 词： | 疲劳累积损伤 等效应力 疲劳寿命估算 变幅载荷 |
Fatigue design methods and design data for finite life under variable amplitude loading |
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| Zhao shaobian.Fatigue design methods and design data for finite life under variable amplitude loading[J].Journal of Machine Design,2000,17(1):5-8. |
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| Authors: | Zhao shaobian |
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| Affiliation: | Zhengzhou Research Institute of Mechanical Engineering |
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| Abstract: | This paper discussed the fatigue strength assessment method and life estimation method of finite life under variable amplitude loading and by the use of Miner's rule, modified Miner's rule and Corten-Dolan's theory presented the fatigue strength assessment,life estimation method and the calculation formulae. Finally by conducting the random fatigue test on four kinds of components the verification and comparison have been carried out on the three kinds of accumulated damage theory for its assessment of fatigue strength and the precision and safety property of life estimation. |
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| Keywords: | Fatigue damage accumulation Eguivalent stress Fatigue strength assessment Fatigue life estimation |
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