基于改进EMD的齿轮箱故障特征提取方法研究
According to Empirical mode decomposition（EMD）generally appearing to end effects in signal processing,combining features of non-stationary vibration signal from gearbox early faults,an improved EMD method is proposed.The method is based on the combination of piecewise Hermit interpolation of order t...
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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.1004.2539.2014.05.028 |
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| author | 谌继南 崔彦平 王磊 朱庆芹 |
| author_facet | 谌继南 崔彦平 王磊 朱庆芹 |
| author_sort | 谌继南 |
| collection | DOAJ |
| description | According to Empirical mode decomposition（EMD）generally appearing to end effects in signal processing,combining features of non-stationary vibration signal from gearbox early faults,an improved EMD method is proposed.The method is based on the combination of piecewise Hermit interpolation of order three with extreme truncation and correlation coefficient screening method.Firstly,the piecewise Hermit interpolation of order three is used to calculate envelopes.Secondly,the signal and envelopes are truncated at the extreme the shortest distance to endpoints,and the middle of them is left for further processing.Lastly,after decomposition all of intrinsic mode functions（IMFs）are used to calculate correlation coefficients with the original signal,so as to find out main IMFs to be made further analysis.The results show that the improved EMD method can extract faults feature in gearbox effectively. |
| format | Article |
| id | doaj-art-65f5ac3aaff548d995501c9634880e2e |
| institution | OA Journals |
| 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-65f5ac3aaff548d995501c9634880e2e2025-08-20T02:25:37ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392014-01-013810210688643830基于改进EMD的齿轮箱故障特征提取方法研究谌继南崔彦平王磊朱庆芹According to Empirical mode decomposition（EMD）generally appearing to end effects in signal processing,combining features of non-stationary vibration signal from gearbox early faults,an improved EMD method is proposed.The method is based on the combination of piecewise Hermit interpolation of order three with extreme truncation and correlation coefficient screening method.Firstly,the piecewise Hermit interpolation of order three is used to calculate envelopes.Secondly,the signal and envelopes are truncated at the extreme the shortest distance to endpoints,and the middle of them is left for further processing.Lastly,after decomposition all of intrinsic mode functions（IMFs）are used to calculate correlation coefficients with the original signal,so as to find out main IMFs to be made further analysis.The results show that the improved EMD method can extract faults feature in gearbox effectively.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2014.05.028 |
| spellingShingle | 谌继南 崔彦平 王磊 朱庆芹 基于改进EMD的齿轮箱故障特征提取方法研究 Jixie chuandong |
| title | 基于改进EMD的齿轮箱故障特征提取方法研究 |
| title_full | 基于改进EMD的齿轮箱故障特征提取方法研究 |
| title_fullStr | 基于改进EMD的齿轮箱故障特征提取方法研究 |
| title_full_unstemmed | 基于改进EMD的齿轮箱故障特征提取方法研究 |
| title_short | 基于改进EMD的齿轮箱故障特征提取方法研究 |
| title_sort | 基于改进emd的齿轮箱故障特征提取方法研究 |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2014.05.028 |
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