Railway Track Irregularity Estimation Using Car Body Vibration: A Data-Driven Approach for Regional Railway
Track and preventive maintenance are necessary for the safe and comfortable operation of railways. Track displacement measured by track inspection vehicles or trolleys has been primarily used for track management. Thus, vibration data measured in in-service vehicles have not been extensively used fo...
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MDPI AG
2024-10-01
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| Series: | Vibration |
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| Online Access: | https://www.mdpi.com/2571-631X/7/4/49 |
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| author | Hitoshi Tsunashima Nozomu Yagura |
| author_facet | Hitoshi Tsunashima Nozomu Yagura |
| author_sort | Hitoshi Tsunashima |
| collection | DOAJ |
| description | Track and preventive maintenance are necessary for the safe and comfortable operation of railways. Track displacement measured by track inspection vehicles or trolleys has been primarily used for track management. Thus, vibration data measured in in-service vehicles have not been extensively used for track management. In this study, we propose a new technique for estimating track irregularities from measured car body vibration for track management. The correlation between track irregularity and car body vibration was analysed using a multibody dynamics simulation of travelling rail vehicles. Gaussian process regression (GPR) was applied to the track irregularity and car body vibration data obtained from the simulation, and a method was proposed to estimate the track irregularities from the constructed regression model. The longitudinal-level, alignment, and cross-level irregularities were estimated from the measured car body vibrations and travelling speeds on a regional railway, and the results were compared with the actual track irregularity data. The results showed that the proposed method is applicable for track irregularity management in regional railways. |
| format | Article |
| id | doaj-art-56845c15409a4e9b88c614d541a4d5c4 |
| institution | OA Journals |
| issn | 2571-631X |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Vibration |
| spelling | doaj-art-56845c15409a4e9b88c614d541a4d5c42025-08-20T02:01:10ZengMDPI AGVibration2571-631X2024-10-017492894810.3390/vibration7040049Railway Track Irregularity Estimation Using Car Body Vibration: A Data-Driven Approach for Regional RailwayHitoshi Tsunashima0Nozomu Yagura1Centre for Railway Research, Nihon University, Tokyo 102-0074, JapanMinebeaMitsumi Inc., 210-5 Nihongi, Yonago 689-3541, JapanTrack and preventive maintenance are necessary for the safe and comfortable operation of railways. Track displacement measured by track inspection vehicles or trolleys has been primarily used for track management. Thus, vibration data measured in in-service vehicles have not been extensively used for track management. In this study, we propose a new technique for estimating track irregularities from measured car body vibration for track management. The correlation between track irregularity and car body vibration was analysed using a multibody dynamics simulation of travelling rail vehicles. Gaussian process regression (GPR) was applied to the track irregularity and car body vibration data obtained from the simulation, and a method was proposed to estimate the track irregularities from the constructed regression model. The longitudinal-level, alignment, and cross-level irregularities were estimated from the measured car body vibrations and travelling speeds on a regional railway, and the results were compared with the actual track irregularity data. The results showed that the proposed method is applicable for track irregularity management in regional railways.https://www.mdpi.com/2571-631X/7/4/49condition monitoringtrack irregularitycar body vibrationGaussian process regressionestimation |
| spellingShingle | Hitoshi Tsunashima Nozomu Yagura Railway Track Irregularity Estimation Using Car Body Vibration: A Data-Driven Approach for Regional Railway Vibration condition monitoring track irregularity car body vibration Gaussian process regression estimation |
| title | Railway Track Irregularity Estimation Using Car Body Vibration: A Data-Driven Approach for Regional Railway |
| title_full | Railway Track Irregularity Estimation Using Car Body Vibration: A Data-Driven Approach for Regional Railway |
| title_fullStr | Railway Track Irregularity Estimation Using Car Body Vibration: A Data-Driven Approach for Regional Railway |
| title_full_unstemmed | Railway Track Irregularity Estimation Using Car Body Vibration: A Data-Driven Approach for Regional Railway |
| title_short | Railway Track Irregularity Estimation Using Car Body Vibration: A Data-Driven Approach for Regional Railway |
| title_sort | railway track irregularity estimation using car body vibration a data driven approach for regional railway |
| topic | condition monitoring track irregularity car body vibration Gaussian process regression estimation |
| url | https://www.mdpi.com/2571-631X/7/4/49 |
| work_keys_str_mv | AT hitoshitsunashima railwaytrackirregularityestimationusingcarbodyvibrationadatadrivenapproachforregionalrailway AT nozomuyagura railwaytrackirregularityestimationusingcarbodyvibrationadatadrivenapproachforregionalrailway |