| 基于有向因果图的数控车床关联故障分析 |
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| 引用本文： | 申桂香,何宇,张英芝,郑锐,樊少华.基于有向因果图的数控车床关联故障分析[J].吉林大学学报(工学版),2009(Z2). |
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| 作者姓名： | 申桂香 何宇 张英芝 郑锐 樊少华 |
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| 作者单位： | 吉林大学机械科学与工程学院; |
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| 基金项目： | “863”国家高技术研究发展计划项目(2007AA04Z402);;国家自然科学基金项目(50875110);;“高档数控机床与基础制造装备”科技重大专项项目(2009ZX04001-021-04)(2009ZX04014-011) |
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| 摘 要： | 通过对采集的某系列数控车床现场故障信息进行统计分析,建立各子系统内部及其子系统之间的故障模式关联故障有向因果图,充分考虑故障模式的严重性、故障发生频率以及故障模式之间的关联系数,得到各子系统的故障关联指标。通过比较可以找出影响该数控车床可靠性的关键子系统,进一步明确该数控车床可靠性改进的主攻方向。
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| 关 键 词： | 数控车床 关联故障分析 有向因果图 故障关联指标 |
Related failure analysis of NC lathe based on directed causality diagram |
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| SHEN Gui-xiang,HE Yu,ZHANG Ying-zhi,ZHENG Rui,FAN Shao-hua.Related failure analysis of NC lathe based on directed causality diagram[J].Journal of Jilin University:Eng and Technol Ed,2009(Z2). |
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| Authors: | SHEN Gui-xiang HE Yu ZHANG Ying-zhi ZHENG Rui FAN Shao-hua |
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| Affiliation: | College of Mechanical Science and Engineering;Jilin University;Changchun 130022;China |
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| Abstract: | Based on the statistical analysis of the failure data which were collected from some CNC lathes in the scene,it will establish the directed causality diagram of the internal subsystem and between subsystems.Considering the fault severity,frequency and the correlation coefficient between failure modes,it will obtain the failure related indicators of the subsystems.A critical subsystem that influences the reliability of NC lathe was presented,which provides the research direction for improving the reliability... |
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| Keywords: | numerical control lathe related failure analysis directed causality diagram failure related indicators |
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