局域波互信息降噪在齿轮箱故障诊断中的应用
For the randomness and blindness of removal of the noisy component and false component after local wave decomposition,a method of local wave mutual information noise reduction is proposed.Firstly,the decomposition of the signal is carried out by using the local wave and the mutual information of eac...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2014-01-01
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| Series: | Jixie chuandong |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2014.01.027 |
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| _version_ | 1849734259939475456 |
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| author | 都衡 潘宏侠 |
| author_facet | 都衡 潘宏侠 |
| author_sort | 都衡 |
| collection | DOAJ |
| description | For the randomness and blindness of removal of the noisy component and false component after local wave decomposition,a method of local wave mutual information noise reduction is proposed.Firstly,the decomposition of the signal is carried out by using the local wave and the mutual information of each IMF component with the original signal is calculated.Secondly,the component with high mutual information is selected for autocorrelation analysis to remove the noise component,and the signal is reconstructed by using the valid component.In order to verify the effectiveness of the method,the simulation signal is used for analyzing,and applied it to the gearbox fault diagnosis.The gearbox vibration signal wavelet transform is carried out after local wave mutual information noise reduction,and the wavelet singular spectrum entropy is extracted as the fault feature to identify faults.The results are compared with the noise reduction processing recognition results prove the practicality of the local wave mutual information noise reduction in engineering practice. |
| format | Article |
| id | doaj-art-230b9f58c3844d39b28a6d27ab4930c6 |
| institution | DOAJ |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2014-01-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-230b9f58c3844d39b28a6d27ab4930c62025-08-20T03:07:50ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392014-01-013814314688648740局域波互信息降噪在齿轮箱故障诊断中的应用都衡潘宏侠For the randomness and blindness of removal of the noisy component and false component after local wave decomposition,a method of local wave mutual information noise reduction is proposed.Firstly,the decomposition of the signal is carried out by using the local wave and the mutual information of each IMF component with the original signal is calculated.Secondly,the component with high mutual information is selected for autocorrelation analysis to remove the noise component,and the signal is reconstructed by using the valid component.In order to verify the effectiveness of the method,the simulation signal is used for analyzing,and applied it to the gearbox fault diagnosis.The gearbox vibration signal wavelet transform is carried out after local wave mutual information noise reduction,and the wavelet singular spectrum entropy is extracted as the fault feature to identify faults.The results are compared with the noise reduction processing recognition results prove the practicality of the local wave mutual information noise reduction in engineering practice.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2014.01.027 |
| spellingShingle | 都衡 潘宏侠 局域波互信息降噪在齿轮箱故障诊断中的应用 Jixie chuandong |
| title | 局域波互信息降噪在齿轮箱故障诊断中的应用 |
| title_full | 局域波互信息降噪在齿轮箱故障诊断中的应用 |
| title_fullStr | 局域波互信息降噪在齿轮箱故障诊断中的应用 |
| title_full_unstemmed | 局域波互信息降噪在齿轮箱故障诊断中的应用 |
| title_short | 局域波互信息降噪在齿轮箱故障诊断中的应用 |
| title_sort | 局域波互信息降噪在齿轮箱故障诊断中的应用 |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2014.01.027 |
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