Method of estimating the probability of derailment during an earthquake using the seismic waveform
This paper describes a methodology for probability estimation of derailment occurrence due to an earthquake by the use of seismic waveforms. Under the method proposed, an index for probability estimation of derailment is calculated using the estimated or measured seismic waveform of a track and the...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2019-05-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/85/874/85_18-00339/_pdf/-char/en |
| _version_ | 1798015101173760000 |
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| author | Kohei IIDA Takefumi MIYAMOTO Tomohiro KAWANISHI |
| author_facet | Kohei IIDA Takefumi MIYAMOTO Tomohiro KAWANISHI |
| author_sort | Kohei IIDA |
| collection | DOAJ |
| description | This paper describes a methodology for probability estimation of derailment occurrence due to an earthquake by the use of seismic waveforms. Under the method proposed, an index for probability estimation of derailment is calculated using the estimated or measured seismic waveform of a track and the three types of running safety limit of the target railway vehicle to sinusoidal vibrations of tracks. The index is calibrated using dynamic simulations of the vehicle behavior with various seismic vibrations in order to obtain the relation between the value of the index and the derailment probability. The dynamic simulations can be executed previously. Therefore, when the seismic vibration of the track is obtained, the time to estimate probability of derailment using the method proposed is much shorter than using dynamic simulation of vehicle behavior. In the case of the Sinkansen train dealt with in the design standard of railway structures, if the calculated index is equal to 10, it means that the probability of derailment occurrence is about 50 %. If the index is larger than 30, the train running on the seismically vibrating track certainly derails due to the earthquake. The method is applicable to the following cases; (a) Quick extraction of sections with high probability of derailment occurrence from the whole train line, and support for the restoration of derailments in the event of a large earthquake. (b) Quantitative check of the effect of seismic countermeasures taken of the railway vehicles, tracks and structures from the standpoint of derailment occurrence probability. |
| first_indexed | 2024-04-11T15:29:01Z |
| format | Article |
| id | doaj.art-59f3bce6f5dd4ec091a808f4d4c97d83 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T15:29:01Z |
| publishDate | 2019-05-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-59f3bce6f5dd4ec091a808f4d4c97d832022-12-22T04:16:11ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612019-05-018587418-0033918-0033910.1299/transjsme.18-00339transjsmeMethod of estimating the probability of derailment during an earthquake using the seismic waveformKohei IIDA0Takefumi MIYAMOTO1Tomohiro KAWANISHI2Railway Dynamics Division, Railway Technical Research InstituteProgram in Mechanical Engineering, Meisei UniversityCenter for Railway Earthquake Engineering Research, Railway Technical Research InstituteThis paper describes a methodology for probability estimation of derailment occurrence due to an earthquake by the use of seismic waveforms. Under the method proposed, an index for probability estimation of derailment is calculated using the estimated or measured seismic waveform of a track and the three types of running safety limit of the target railway vehicle to sinusoidal vibrations of tracks. The index is calibrated using dynamic simulations of the vehicle behavior with various seismic vibrations in order to obtain the relation between the value of the index and the derailment probability. The dynamic simulations can be executed previously. Therefore, when the seismic vibration of the track is obtained, the time to estimate probability of derailment using the method proposed is much shorter than using dynamic simulation of vehicle behavior. In the case of the Sinkansen train dealt with in the design standard of railway structures, if the calculated index is equal to 10, it means that the probability of derailment occurrence is about 50 %. If the index is larger than 30, the train running on the seismically vibrating track certainly derails due to the earthquake. The method is applicable to the following cases; (a) Quick extraction of sections with high probability of derailment occurrence from the whole train line, and support for the restoration of derailments in the event of a large earthquake. (b) Quantitative check of the effect of seismic countermeasures taken of the railway vehicles, tracks and structures from the standpoint of derailment occurrence probability.https://www.jstage.jst.go.jp/article/transjsme/85/874/85_18-00339/_pdf/-char/enrailway vehicleearthquakerunning safetyseismic vibration of trackprobability of derailmentevaluation of a whole rail line |
| spellingShingle | Kohei IIDA Takefumi MIYAMOTO Tomohiro KAWANISHI Method of estimating the probability of derailment during an earthquake using the seismic waveform Nihon Kikai Gakkai ronbunshu railway vehicle earthquake running safety seismic vibration of track probability of derailment evaluation of a whole rail line |
| title | Method of estimating the probability of derailment during an earthquake using the seismic waveform |
| title_full | Method of estimating the probability of derailment during an earthquake using the seismic waveform |
| title_fullStr | Method of estimating the probability of derailment during an earthquake using the seismic waveform |
| title_full_unstemmed | Method of estimating the probability of derailment during an earthquake using the seismic waveform |
| title_short | Method of estimating the probability of derailment during an earthquake using the seismic waveform |
| title_sort | method of estimating the probability of derailment during an earthquake using the seismic waveform |
| topic | railway vehicle earthquake running safety seismic vibration of track probability of derailment evaluation of a whole rail line |
| url | https://www.jstage.jst.go.jp/article/transjsme/85/874/85_18-00339/_pdf/-char/en |
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