| DHMM的动态模式识别理论在旋转机械故障诊断中的应用 |
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| 引用本文： | 冯长建,康晶,吴斌,胡红英. DHMM的动态模式识别理论在旋转机械故障诊断中的应用[J]. 大连民族学院学报, 2006, 8(3): 12-15,27 |
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| 作者姓名： | 冯长建 康晶 吴斌 胡红英 |
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| 作者单位： | 大连民族学院,机电信息工程学院,辽宁,大连,116605;大连民族学院,机电信息工程学院,辽宁,大连,116605;大连民族学院,机电信息工程学院,辽宁,大连,116605;大连民族学院,机电信息工程学院,辽宁,大连,116605 |
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| 摘 要： | 对于旋转机械启动过程的动态模式,提出了一种基于离散隐马尔可夫模型(DHMM)的旋转机械故障诊断新方法.该方法对旋转机械启动过程的局部振动信号进行FFT特征提取,然后利用自组织特征映射对提取的特征矢量进行预分类编码,把矢量编码作为观测序列引入到DHMM中进行机器学习和故障诊断实验.实验表明,提出的方法对旋转机械启动过程进行诊断是十分有效的.
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| 关 键 词： | 离散隐马尔可夫模型 故障诊断 动态模式识别 旋转机械 矢量量化 |
| 文章编号： | 1009-315X（2006）03-0012-04 |
| 收稿时间： | 2006-03-11 |
| 修稿时间： | 2006-03-11 |
Application in Fault Diagnosis of Rotary Machine Based on Theory Of DHMM Dynamic Pattern Recognition |
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| FENG Chang-jian,KANG Jing,WU Bin,HU Hong-ying. Application in Fault Diagnosis of Rotary Machine Based on Theory Of DHMM Dynamic Pattern Recognition[J]. Journal of Dalian Nationalities University, 2006, 8(3): 12-15,27 |
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| Authors: | FENG Chang-jian KANG Jing WU Bin HU Hong-ying |
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| Abstract: | A new method based on Discrete Hidden Markov Models(DHMM) is proposed for dynamic patterns recognition in running-up process of rotary machine.At first FFT features are extracted from local vibration signal of rotary machine in running-up stage,then coded FFT vectors into codes book of integer numbers by SOM,and introduced these codes book into DHMM for machine learning and classification.Finally,conclusions of fault diagnosis experiments are presented.Experiments which verified proposed method was effective. |
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| Keywords: | discrete hidden Markov Model fault diagnosis dynamic pattern recognition rotary machine vector quantification |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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