| 一种基于结构预定寿命的可靠性设计方法 |
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| 引用本文： | 闫光,左春柽,刘克格.一种基于结构预定寿命的可靠性设计方法[J].吉林大学学报(工学版),2009,39(3):639-0642. |
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| 作者姓名： | 闫光 左春柽 刘克格 |
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| 作者单位： | 吉林大学,机械科学与工程学院,长春,130022 |
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| 基金项目： | 国家自然科学基金项目(50135010) |
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| 摘 要： | 针对水轮机转轮结构,研究了产品在设计阶段进行结构预定寿命可靠性设计问题。根据P-S-N曲线指定寿命下的疲劳强度概率分布和由试验得到的水轮机不同工作水头下载荷应力幅值概率分布函数,按照应力强度干涉理论,给出了预定寿命下水轮机许用水头的一种计算方法和转轮结构在指定寿命下的合理设计方法。
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| 关 键 词： | 机械设计 结构预定寿命 可靠性设计 应力强度干涉模型 疲劳强度概率分布 |
| 收稿时间： | 2008-01-10 |
| 修稿时间： | 2008-05-10 |
Method of reliability design for structure under predetermined life of structures |
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| YAN Guang,ZUO Chun-cheng,LIU Ke-ge.Method of reliability design for structure under predetermined life of structures[J].Journal of Jilin University:Eng and Technol Ed,2009,39(3):639-0642. |
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| Authors: | YAN Guang ZUO Chun-cheng LIU Ke-ge |
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| Affiliation: | College of Mechanical Science and Engineering, Jilin University,Changchun 130022,China |
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| Abstract: | At the phase of original design for hydraulic turbine runner structure,the key question is how to design structural components and consider their fatigue life.According to probability density function of fatigue strength under given life from P-S-N curve and probability density function of stress amplitude for hydraulic turbine runner structure from experimental data,the method of calculating working pressure head under predetermined life and the reliability design method of hydraulic turbine runner structu... |
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| Keywords: | mechanical design predetermined life of structures reliability design stress-strength interference model probability density function of fatigue strength |
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