| Fault Diagnosis of a Turbo—unit Based on Wavelet Packet Theory |
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| 引用本文： | HOURong－tao SUNLi－yuan 等.Fault Diagnosis of a Turbo—unit Based on Wavelet Packet Theory[J].国际设备工程与管理,2002,7(4):198-203. |
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| 作者姓名： | HOURong－tao SUNLi－yuan |
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| 作者单位： | [1]NortheasternUniversity,Shenyang100024,P.R.China [2]HebeiInstituteofTechnology,Tangshan063000,P.R.China |
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| 基金项目： | ThestudyissupportedbytheDoctorandMasterFoundationofTangshanMunicipality( 0 114 2 0 1— 1) |
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| 摘 要： | In this paper we studied the fault feature of the generator set and the characteristics of wavelet packet theory for signal de-noising.The vibration signal of the generator set in different states is ana-lyzed by using the signal re-construction technique of the wavelet packet theory.The time domain method is given for the generator set fault diagnosis.The experiment results show that the wavelet packet theory can be used to directly identify the state of the generator set and provide a credible new idea for complex machinery fault diagnosis.
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| 关 键 词： | 涡轮装置 小波包理论 故障诊断 运行状态 信息提取 |
Fault Diagnosis of a Turbo-unit Based on Wavelet Packet Theory |
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| HOU Rong-tao,SUN Li-yuan,REN Li-yi,YANG Wen-ping.Fault Diagnosis of a Turbo-unit Based on Wavelet Packet Theory[J].International Journal of Plant Engineering and Management,2002,7(4):198-203. |
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| Authors: | HOU Rong-tao SUN Li-yuan REN Li-yi YANG Wen-ping |
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| Abstract: | In this paper we studied the fault feature of the generator set and the characteristics of wavelet packet theory for signal de noising. The vibration signal of the generator set in different states is analyzed by using the signal re construction technique of the wavelet packet theory. The time domain method is given for the generator set fault diagnosis. The experiment results show that the wavelet packet theory can be used to directly identify the state of the generator set and provide a credible new idea for complex machinery fault diagnosis. |
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| Keywords: | wavelet packet turbo unit complex machinery fault diagnosis |
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