Research on the rapid diagnosis method for hunting of high-speed trains
Purpose – High-speed turnouts are more complex in structure and thus may cause abnormal vibration of high-speed train car body, affecting driving safety and passenger riding experience. Therefore, it is necessary to analyze the data characteristics of continuous hunting of high-speed trains passing...
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| Format: | Article |
| Language: | English |
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Emerald Publishing
2025-02-01
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| Series: | Railway Sciences |
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| Online Access: | https://www.emerald.com/insight/content/doi/10.1108/RS-10-2024-0042/full/pdf |
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| _version_ | 1832539969879539712 |
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| author | Wanru Xie Yixin Zhao Gang Zhao Fei Yang Zilong Wei Jinzhao Liu |
| author_facet | Wanru Xie Yixin Zhao Gang Zhao Fei Yang Zilong Wei Jinzhao Liu |
| author_sort | Wanru Xie |
| collection | DOAJ |
| description | Purpose – High-speed turnouts are more complex in structure and thus may cause abnormal vibration of high-speed train car body, affecting driving safety and passenger riding experience. Therefore, it is necessary to analyze the data characteristics of continuous hunting of high-speed trains passing through turnouts and propose a diagnostic method for engineering applications. Design/methodology/approach – First, Complete Ensemble Empirical Mode Decomposition with Adaptive Noise (CEEMDAN) is performed to determine the first characteristic component of the car body’s lateral acceleration. Then, the Short-Time Fourier Transform (STFT) is performed to calculate the marginal spectra. Finally, the presence of a continuous hunting problem is determined based on the results of the comparison calculations and diagnostic thresholds. To improve computational efficiency, permutation entropy (PE) is used as a fast indicator to identify turnouts with potential problems. Findings – Under continuous hunting conditions, the PE is less than 0.90; the ratio of the maximum peak value of the signal component to the original signal peak value exceeded 0.7, and there is an energy band in the STFT time-frequency map, which corresponds to a frequency distribution range of 1–2 Hz. Originality/value – The research results have revealed the lateral vibration characteristics of the high-speed train’s car body during continuous hunting when passing through turnouts. On this basis, an effective diagnostic method has been proposed. With a focus on practical engineering applications, a rapid screening index for identifying potential issues has been proposed, significantly enhancing the efficiency of diagnostic processes. |
| format | Article |
| id | doaj-art-64cb4e16fa2e451289437a65d7d655fe |
| institution | Kabale University |
| issn | 2755-0907 2755-0915 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Emerald Publishing |
| record_format | Article |
| series | Railway Sciences |
| spelling | doaj-art-64cb4e16fa2e451289437a65d7d655fe2025-02-05T07:11:01ZengEmerald PublishingRailway Sciences2755-09072755-09152025-02-014112110.1108/RS-10-2024-0042Research on the rapid diagnosis method for hunting of high-speed trainsWanru Xie0Yixin Zhao1Gang Zhao2Fei Yang3Zilong Wei4Jinzhao Liu5Infrastructure Inspection Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing, ChinaInfrastructure Inspection Center, China Railway Corp, Beijing, ChinaInfrastructure Inspection Center, China Railway Corp, Beijing, ChinaInfrastructure Inspection Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing, ChinaInfrastructure Inspection Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing, ChinaInfrastructure Inspection Institute, China Academy of Railway Sciences Corporation Limited, Beijing, ChinaPurpose – High-speed turnouts are more complex in structure and thus may cause abnormal vibration of high-speed train car body, affecting driving safety and passenger riding experience. Therefore, it is necessary to analyze the data characteristics of continuous hunting of high-speed trains passing through turnouts and propose a diagnostic method for engineering applications. Design/methodology/approach – First, Complete Ensemble Empirical Mode Decomposition with Adaptive Noise (CEEMDAN) is performed to determine the first characteristic component of the car body’s lateral acceleration. Then, the Short-Time Fourier Transform (STFT) is performed to calculate the marginal spectra. Finally, the presence of a continuous hunting problem is determined based on the results of the comparison calculations and diagnostic thresholds. To improve computational efficiency, permutation entropy (PE) is used as a fast indicator to identify turnouts with potential problems. Findings – Under continuous hunting conditions, the PE is less than 0.90; the ratio of the maximum peak value of the signal component to the original signal peak value exceeded 0.7, and there is an energy band in the STFT time-frequency map, which corresponds to a frequency distribution range of 1–2 Hz. Originality/value – The research results have revealed the lateral vibration characteristics of the high-speed train’s car body during continuous hunting when passing through turnouts. On this basis, an effective diagnostic method has been proposed. With a focus on practical engineering applications, a rapid screening index for identifying potential issues has been proposed, significantly enhancing the efficiency of diagnostic processes.https://www.emerald.com/insight/content/doi/10.1108/RS-10-2024-0042/full/pdfHigh-speed railwayPeriodic huntingRapid diagnosisCEEMDANSTFTPermutation entropy |
| spellingShingle | Wanru Xie Yixin Zhao Gang Zhao Fei Yang Zilong Wei Jinzhao Liu Research on the rapid diagnosis method for hunting of high-speed trains Railway Sciences High-speed railway Periodic hunting Rapid diagnosis CEEMDAN STFT Permutation entropy |
| title | Research on the rapid diagnosis method for hunting of high-speed trains |
| title_full | Research on the rapid diagnosis method for hunting of high-speed trains |
| title_fullStr | Research on the rapid diagnosis method for hunting of high-speed trains |
| title_full_unstemmed | Research on the rapid diagnosis method for hunting of high-speed trains |
| title_short | Research on the rapid diagnosis method for hunting of high-speed trains |
| title_sort | research on the rapid diagnosis method for hunting of high speed trains |
| topic | High-speed railway Periodic hunting Rapid diagnosis CEEMDAN STFT Permutation entropy |
| url | https://www.emerald.com/insight/content/doi/10.1108/RS-10-2024-0042/full/pdf |
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