机械故障的可拓诊断方法研究

姚瑶; 陈炳发; 王体春

doi:10.13433/j.cnki.1003-8728.2014.0512

机械故障的可拓诊断方法研究

doi: 10.13433/j.cnki.1003-8728.2014.0512

1.
南京航空航天大学机电学院, 南京 210016

基金项目:

国家自然科学基金项目(51005114)

中国博士后科学基金项目(20100471334)

中央高校基本科研业务费专项资金项目(56XAA12060)资助

详细信息

作者简介:
姚瑶(1987-)，硕士研究生，研究方向为计算机辅助设计，yaoyaoresearch@163,com;陈炳发(联系人)，教授，bfchen@nuaa,edu,cn

姚瑶(1987-)，硕士研究生，研究方向为计算机辅助设计，yaoyaoresearch@163,com;陈炳发(联系人)，教授，bfchen@nuaa,edu,cn

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出版历程
- 收稿日期: 2012-10-27
- 刊出日期: 2015-06-10

Study on the Failure Analysis of Equipments Based on Extension Theory

1.
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016

摘要

摘要: 提出了一种结合灰色关联分析的可拓故障诊断方法。该方法利用可拓学原理建立故障诊断基元模型,对监测数据进行形式化描述,并根据指标数据序列生成原理对数据规格化处理,弥补了可拓故障诊断就小样本,贫信息等问题无法解决的不足。通过增大诊断信息空间,获得了更精确的关联度分析。为提高故障诊断准确率,对关联度计算公式加以适当修正。将该方法应用于滚动轴承故障诊断中,验证了有效性。
- 可拓学 /
- 故障诊断 /
- 灰色系统 /
- 物元模型
Abstract: The failure diagnosis technology is an important part of the equipments' normal running. Aiming at the problems in the fault diagnosis,a method combining the extension theory with grey system is proposed. It adopts the extension theory to build matter element modes of failure diagnosis and provides a formal description of the monitoring data. It also applys the principle of index data generation for geting the normalized data. The method covered the shortage of the insurmountable problems of small sample and poor information. a more precise analysis of the correlation degree by increasing the diagnostic information area can be gotten. In order to improve the accuracy of failure diagnosis,the formula of the correlation degree is corrected. The new method is used in the failure diagnosis of antifriction bearing to prove to be effective.
- analytic hierarchy process /
- data processing /
- extension theory /
- failure analysis

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参考文献(16)

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