Application of the Rational Hermite Interpolation LMD Method in the Compound Fault Diagnosis Research
In view of the multi-component coupling modulation characteristics of complex fault signals and the envelope error phenomenon of the local average decomposition method,an LMD method based on rational sub-interval Hermite interpolation is proposed. Through calculating the optimal parameter interval,t...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2018-01-01
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| Series: | Jixie chuandong |
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| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2018.08.033 |
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| author | Cui Yanping Lu Zhaojing Wu Chunyu |
| author_facet | Cui Yanping Lu Zhaojing Wu Chunyu |
| author_sort | Cui Yanping |
| collection | DOAJ |
| description | In view of the multi-component coupling modulation characteristics of complex fault signals and the envelope error phenomenon of the local average decomposition method,an LMD method based on rational sub-interval Hermite interpolation is proposed. Through calculating the optimal parameter interval,the optimal parameter between the cells and the parameter in the optimal parameter interval is selected to adjust the shape of the interpolation spline so that the interpolation spline is infinitely close to the target to be interpolated,thereby improving the fitting precision and accuracy of the envelope curve. The comparison of simulation data is used to verify the approximation ability and high fitting accuracy of the rational Hermite interpolation LMD method. The method is applied to the diagnosis of compound fault signals of gear and rolling bearing,and the high fitting accuracy of the method is proved again. The accurate diagnosis of compound fault signal is realized. |
| format | Article |
| id | doaj-art-c77e0701e6de4f45b9c9a1a8bd65ced3 |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2018-01-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-c77e0701e6de4f45b9c9a1a8bd65ced32025-01-10T14:40:58ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392018-01-014216917429937939Application of the Rational Hermite Interpolation LMD Method in the Compound Fault Diagnosis ResearchCui YanpingLu ZhaojingWu ChunyuIn view of the multi-component coupling modulation characteristics of complex fault signals and the envelope error phenomenon of the local average decomposition method,an LMD method based on rational sub-interval Hermite interpolation is proposed. Through calculating the optimal parameter interval,the optimal parameter between the cells and the parameter in the optimal parameter interval is selected to adjust the shape of the interpolation spline so that the interpolation spline is infinitely close to the target to be interpolated,thereby improving the fitting precision and accuracy of the envelope curve. The comparison of simulation data is used to verify the approximation ability and high fitting accuracy of the rational Hermite interpolation LMD method. The method is applied to the diagnosis of compound fault signals of gear and rolling bearing,and the high fitting accuracy of the method is proved again. The accurate diagnosis of compound fault signal is realized.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2018.08.033GearRolling bearingCompound failureThree times Hermite interpolation methodRational Hermite interpolation methodLMD |
| spellingShingle | Cui Yanping Lu Zhaojing Wu Chunyu Application of the Rational Hermite Interpolation LMD Method in the Compound Fault Diagnosis Research Jixie chuandong Gear Rolling bearing Compound failure Three times Hermite interpolation method Rational Hermite interpolation method LMD |
| title | Application of the Rational Hermite Interpolation LMD Method in the Compound Fault Diagnosis Research |
| title_full | Application of the Rational Hermite Interpolation LMD Method in the Compound Fault Diagnosis Research |
| title_fullStr | Application of the Rational Hermite Interpolation LMD Method in the Compound Fault Diagnosis Research |
| title_full_unstemmed | Application of the Rational Hermite Interpolation LMD Method in the Compound Fault Diagnosis Research |
| title_short | Application of the Rational Hermite Interpolation LMD Method in the Compound Fault Diagnosis Research |
| title_sort | application of the rational hermite interpolation lmd method in the compound fault diagnosis research |
| topic | Gear Rolling bearing Compound failure Three times Hermite interpolation method Rational Hermite interpolation method LMD |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2018.08.033 |
| work_keys_str_mv | AT cuiyanping applicationoftherationalhermiteinterpolationlmdmethodinthecompoundfaultdiagnosisresearch AT luzhaojing applicationoftherationalhermiteinterpolationlmdmethodinthecompoundfaultdiagnosisresearch AT wuchunyu applicationoftherationalhermiteinterpolationlmdmethodinthecompoundfaultdiagnosisresearch |