| 载荷共享并联系统疲劳累积损伤可靠性模型 |
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| 引用本文： | 郝广波,谢里阳,李莉,何秀芸.载荷共享并联系统疲劳累积损伤可靠性模型[J].东北大学学报(自然科学版),2009,30(2):262. |
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| 作者姓名： | 郝广波 谢里阳 李莉 何秀芸 |
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| 作者单位： | 东北大学,机械工程与自动化学院,辽宁,沈阳,110004 |
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| 基金项目： | 教育部高等学校博士学科点专项科研基金，国家自然科学基金 |
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| 摘 要： | 针对存在载荷传递、分担的并联系统,传统的并联系统可靠性模型已不适用.为了有效处理载荷共享并联系统的可靠性问题,首先分析了并联系统的相关失效,并分步计算并联系统可靠度,应用全概率公式和Miner理论对并联系统进行了疲劳累积损伤可靠性建模.其次,运用Monte Carlo方法对零件寿命服从Weibull分布的并联系统可靠度进行了模拟计算,同时对零件寿命服从对数正态分布的并联系统可靠度显式计算公式进行了推导.建立了变应力作用下并联系统疲劳累积损伤可靠性模型.
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| 关 键 词： | 载荷分担 并联系统 疲劳累积损伤 可靠性 寿命分布 |
Reliability Model of Cumulative Fatigue Damage of Load-Sharing Parallel System |
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| HAO Guang-bo,XIE Li-yang,LI Li,HE Xiu-yun.Reliability Model of Cumulative Fatigue Damage of Load-Sharing Parallel System[J].Journal of Northeastern University(Natural Science),2009,30(2):262. |
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| Authors: | HAO Guang-bo XIE Li-yang LI Li HE Xiu-yun |
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| Institution: | HAO Guang-bo,XIE Li-yang,LI Li,HE Xiu-yun (School of Mechanical Engineering & Automation,Northeastern University,Shenyang 110004,China.) |
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| Abstract: | The conventional reliability model of parallel system is inadaptable to the parallel system where the load is transferred and shared.Analyzing the dependent failure and stepwise computing the reliability of a parallel system,the reliability model of cumulative fatigue damage of a load sharing parallel system is developed according to the total probability formula and Miner theory.Then,a simulative computation is done by the Monte Carlo method for the reliability of parallel system in which the service life ... |
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| Keywords: | load sharing parallel system cumulative fatigue damage reliability service life distribution |
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