Nonstationary Random Vibration Performance of Train-Bridge Coupling System with Vertical Track Irregularity
In order to study the random vibration performance of trains running on continuous beam bridge with vertical track irregularity, a time-domain framework of random analysis on train-bridge coupling system is established. The vertical rail irregularity is regarded as a random process. A multibody mass...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2016/1450895 |
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| author | Xiaozhen Li Yan Zhu Zhibin Jin |
| author_facet | Xiaozhen Li Yan Zhu Zhibin Jin |
| author_sort | Xiaozhen Li |
| collection | DOAJ |
| description | In order to study the random vibration performance of trains running on continuous beam bridge with vertical track irregularity, a time-domain framework of random analysis on train-bridge coupling system is established. The vertical rail irregularity is regarded as a random process. A multibody mass-spring-damper model is employed to represent a moving railway car and the bridge system is simulated by finite elements. By introducing the pseudo excitation algorithm into the train-bridge interaction dynamic system, expressions of the mean value, standard deviation, and power spectral density of the nonstationary random dynamic responses of bridge and vehicles are derived. Monte-Carlo simulations are implemented to validate the presented method. A comprehensive analysis of the train-bridge coupling system with vertical track irregularity is conducted focusing on the effect of the randomness of the vertical rail irregularity on the dynamic behavior of the running train and the three-span continuous concrete bridge. Moreover, stochastic characteristics of the indicator for assessing the safety and the riding quality of the railway cars running on continuous beam bridge are carried out, which may be a useful reference in the dynamic design of the bridge. |
| format | Article |
| id | doaj-art-b709656f59af443f99948e7c6cd9245f |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-b709656f59af443f99948e7c6cd9245f2025-02-03T06:42:01ZengWileyShock and Vibration1070-96221875-92032016-01-01201610.1155/2016/14508951450895Nonstationary Random Vibration Performance of Train-Bridge Coupling System with Vertical Track IrregularityXiaozhen Li0Yan Zhu1Zhibin Jin2School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaIn order to study the random vibration performance of trains running on continuous beam bridge with vertical track irregularity, a time-domain framework of random analysis on train-bridge coupling system is established. The vertical rail irregularity is regarded as a random process. A multibody mass-spring-damper model is employed to represent a moving railway car and the bridge system is simulated by finite elements. By introducing the pseudo excitation algorithm into the train-bridge interaction dynamic system, expressions of the mean value, standard deviation, and power spectral density of the nonstationary random dynamic responses of bridge and vehicles are derived. Monte-Carlo simulations are implemented to validate the presented method. A comprehensive analysis of the train-bridge coupling system with vertical track irregularity is conducted focusing on the effect of the randomness of the vertical rail irregularity on the dynamic behavior of the running train and the three-span continuous concrete bridge. Moreover, stochastic characteristics of the indicator for assessing the safety and the riding quality of the railway cars running on continuous beam bridge are carried out, which may be a useful reference in the dynamic design of the bridge.http://dx.doi.org/10.1155/2016/1450895 |
| spellingShingle | Xiaozhen Li Yan Zhu Zhibin Jin Nonstationary Random Vibration Performance of Train-Bridge Coupling System with Vertical Track Irregularity Shock and Vibration |
| title | Nonstationary Random Vibration Performance of Train-Bridge Coupling System with Vertical Track Irregularity |
| title_full | Nonstationary Random Vibration Performance of Train-Bridge Coupling System with Vertical Track Irregularity |
| title_fullStr | Nonstationary Random Vibration Performance of Train-Bridge Coupling System with Vertical Track Irregularity |
| title_full_unstemmed | Nonstationary Random Vibration Performance of Train-Bridge Coupling System with Vertical Track Irregularity |
| title_short | Nonstationary Random Vibration Performance of Train-Bridge Coupling System with Vertical Track Irregularity |
| title_sort | nonstationary random vibration performance of train bridge coupling system with vertical track irregularity |
| url | http://dx.doi.org/10.1155/2016/1450895 |
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