Study on the Contrast between Local Characteristic-scale Decomposition and Local Mean Decomposition
The Local Characteristic-scale Decomposition（ LCD） and the Local Mean Decomposition（ LMD） are two kinds of effective adaptive time-frequency analysis methods which widely used in the field of rotating machinery fault diagnosis. In order to compare the difference of calculation process and the perfor...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Transmission
2017-01-01
|
| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2017.04.003 |
| _version_ | 1797819238380994560 |
|---|---|
| author | Cui Weicheng Li Wei Meng Fanlei Liu Linmi |
| author_facet | Cui Weicheng Li Wei Meng Fanlei Liu Linmi |
| author_sort | Cui Weicheng |
| collection | DOAJ |
| description | The Local Characteristic-scale Decomposition（ LCD） and the Local Mean Decomposition（ LMD） are two kinds of effective adaptive time-frequency analysis methods which widely used in the field of rotating machinery fault diagnosis. In order to compare the difference of calculation process and the performance of them,aiming at the acquiring of mean curve and decomposition termination conditions,the comparative research are carried out. The deficiencies of LMD in the mean point definition,interpolation method and pure frequency modulation standards are pointed out. Through the simulation signal and the bearing inner ring fault vibration signal analysis,the superiority of LCD is verified,but the part of the mind of LMD can also provide reference for the LCD. |
| first_indexed | 2024-03-13T09:21:02Z |
| format | Article |
| id | doaj.art-440bb8d243974c7a863630b039d7f652 |
| institution | Directory Open Access Journal |
| issn | 1004-2539 |
| language | zho |
| last_indexed | 2024-03-13T09:21:02Z |
| publishDate | 2017-01-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj.art-440bb8d243974c7a863630b039d7f6522023-05-26T09:44:22ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392017-01-0141101429929734Study on the Contrast between Local Characteristic-scale Decomposition and Local Mean DecompositionCui WeichengLi WeiMeng FanleiLiu LinmiThe Local Characteristic-scale Decomposition（ LCD） and the Local Mean Decomposition（ LMD） are two kinds of effective adaptive time-frequency analysis methods which widely used in the field of rotating machinery fault diagnosis. In order to compare the difference of calculation process and the performance of them,aiming at the acquiring of mean curve and decomposition termination conditions,the comparative research are carried out. The deficiencies of LMD in the mean point definition,interpolation method and pure frequency modulation standards are pointed out. Through the simulation signal and the bearing inner ring fault vibration signal analysis,the superiority of LCD is verified,but the part of the mind of LMD can also provide reference for the LCD.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2017.04.003Local characteristic-scale decomposition;Local mean decomposition;Mean point;Mean carve;Interpolation |
| spellingShingle | Cui Weicheng Li Wei Meng Fanlei Liu Linmi Study on the Contrast between Local Characteristic-scale Decomposition and Local Mean Decomposition Jixie chuandong Local characteristic-scale decomposition;Local mean decomposition;Mean point;Mean carve;Interpolation |
| title | Study on the Contrast between Local Characteristic-scale Decomposition and Local Mean Decomposition |
| title_full | Study on the Contrast between Local Characteristic-scale Decomposition and Local Mean Decomposition |
| title_fullStr | Study on the Contrast between Local Characteristic-scale Decomposition and Local Mean Decomposition |
| title_full_unstemmed | Study on the Contrast between Local Characteristic-scale Decomposition and Local Mean Decomposition |
| title_short | Study on the Contrast between Local Characteristic-scale Decomposition and Local Mean Decomposition |
| title_sort | study on the contrast between local characteristic scale decomposition and local mean decomposition |
| topic | Local characteristic-scale decomposition;Local mean decomposition;Mean point;Mean carve;Interpolation |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2017.04.003 |
| work_keys_str_mv | AT cuiweicheng studyonthecontrastbetweenlocalcharacteristicscaledecompositionandlocalmeandecomposition AT liwei studyonthecontrastbetweenlocalcharacteristicscaledecompositionandlocalmeandecomposition AT mengfanlei studyonthecontrastbetweenlocalcharacteristicscaledecompositionandlocalmeandecomposition AT liulinmi studyonthecontrastbetweenlocalcharacteristicscaledecompositionandlocalmeandecomposition |