| 基于粗糙集理论旋转机械频域特性的故障诊断 |
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| 引用本文： | 许琦,刘德仿,李永生.基于粗糙集理论旋转机械频域特性的故障诊断[J].吉林大学学报(理学版),2007,45(4):617-623. |
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| 作者姓名： | 许琦 刘德仿 李永生 |
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| 作者单位： | 1. 盐城工学院 化学与生物工程学院, 江苏省 盐城 224002； 2. 盐城工学院 机械工程学院, 江苏省 盐城 224002；3. 南京工业大学 机械工程学院, 南京 210009 |
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| 摘 要： | 应用粗糙集理论将旋转机械转子的频域信息作为研究对象, 从转子故障实验的频域图表及其相关数据中, 构造符合粗糙集理论要求的决策表, 并对决策表进行约简, 得到旋转机械故障诊断的决策规则, 通过区分矩阵和区分方程寻找决策表的约简和核, 最后优化鳞选出决策表的最小约简形式.
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| 关 键 词： | 粗糙集理论 故障诊断 约简 核 |
| 文章编号： | 1671-5489（2007）04-0617-07 |
| 收稿时间： | 2006-09-21 |
| 修稿时间： | 2006-09-21 |
Rotating Machinery Fault Diagnosis by Power Spectrum Based on Rough Sets Theory |
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| XU Qi,LIU De-fang,LI Yong-sheng.Rotating Machinery Fault Diagnosis by Power Spectrum Based on Rough Sets Theory[J].Journal of Jilin University: Sci Ed,2007,45(4):617-623. |
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| Authors: | XU Qi LIU De-fang LI Yong-sheng |
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| Institution: | 1. College of Chemical and Bioengineering, Yancheng Institute of Technology, Yancheng 224002, Jiangsu Province, China;2. College of Mechanical Engineering, Yancheng Institute of Technology, Yancheng 224002, Jiangsu Province, China;3. College of Mechanical Engineering, Nanjing University of Technology, Nanjing 210009, China |
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| Abstract: | Rotating machinery fault diagnosis was studied based on rough sets theory. Decision table of fault diagnosis is built up form the chart and correlative data of rotor fault experiment, the relation between condition attribute and decision attribute is made out. The simple decision table is gotten, and decision rules of rotating machinery fault diagnosis are formed, and reliability of decision rules is studied on rough sets theory. The reduction and core of decision table are put out by discernible matrix and discernible function, and the simplest reduction modality of decision table can be elected by optimization. |
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| Keywords: | rough sets theory fault diagnosis reduction core |
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