Application of KLE-PEM for Random Dynamic Analysis of Nonlinear Train-Track-Bridge System
A nonlinear train-track-bridge system (TTBS) considering the random track irregularity and mass of train is discussed. Based on the Karhunen–Loéve theory, the track irregularity is expressed and input into the TTBS, and the result of random response is calculated using the point estimation method. T...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/8886737 |
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| _version_ | 1849693595829796864 |
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| author | Lizhong Jiang Xiang Liu Tuo Zhou Ping Xiang Yuanjun Chen Yulin Feng Zhipeng Lai Shanshan Cao |
| author_facet | Lizhong Jiang Xiang Liu Tuo Zhou Ping Xiang Yuanjun Chen Yulin Feng Zhipeng Lai Shanshan Cao |
| author_sort | Lizhong Jiang |
| collection | DOAJ |
| description | A nonlinear train-track-bridge system (TTBS) considering the random track irregularity and mass of train is discussed. Based on the Karhunen–Loéve theory, the track irregularity is expressed and input into the TTBS, and the result of random response is calculated using the point estimation method. Two cases are used to compare and validate the applicability of the proposed method, which show that the proposed method has a high precision and efficiency. Then, taking a 7-span bridge and a high-speed train as an example, the calculation results of random response of the nonlinear and linear wheel-rail model are compared, and the results show that for the bridge and rail response, the nonlinear and linear models are almost the same. Finally, comparing the calculated probability distribution results with the test results, it shows that the method can be applied to the prediction of actual response range. |
| format | Article |
| id | doaj-art-2fd4701a11844ed893c81eda861bc5c2 |
| institution | DOAJ |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-2fd4701a11844ed893c81eda861bc5c22025-08-20T03:20:22ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/88867378886737Application of KLE-PEM for Random Dynamic Analysis of Nonlinear Train-Track-Bridge SystemLizhong Jiang0Xiang Liu1Tuo Zhou2Ping Xiang3Yuanjun Chen4Yulin Feng5Zhipeng Lai6Shanshan Cao7School of Civil Engineering, Central South University, Changsha 410075, Hunan, ChinaSchool of Civil Engineering, Central South University, Changsha 410075, Hunan, ChinaSchool of Civil Engineering, Central South University, Changsha 410075, Hunan, ChinaSchool of Civil Engineering, Central South University, Changsha 410075, Hunan, ChinaSchool of Civil Engineering, Central South University, Changsha 410075, Hunan, ChinaSchool of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, ChinaSchool of Civil Engineering, Central South University, Changsha 410075, Hunan, ChinaGuangdong Transportation Technology Testing Co., Ltd, Guangzhou 510550, ChinaA nonlinear train-track-bridge system (TTBS) considering the random track irregularity and mass of train is discussed. Based on the Karhunen–Loéve theory, the track irregularity is expressed and input into the TTBS, and the result of random response is calculated using the point estimation method. Two cases are used to compare and validate the applicability of the proposed method, which show that the proposed method has a high precision and efficiency. Then, taking a 7-span bridge and a high-speed train as an example, the calculation results of random response of the nonlinear and linear wheel-rail model are compared, and the results show that for the bridge and rail response, the nonlinear and linear models are almost the same. Finally, comparing the calculated probability distribution results with the test results, it shows that the method can be applied to the prediction of actual response range.http://dx.doi.org/10.1155/2020/8886737 |
| spellingShingle | Lizhong Jiang Xiang Liu Tuo Zhou Ping Xiang Yuanjun Chen Yulin Feng Zhipeng Lai Shanshan Cao Application of KLE-PEM for Random Dynamic Analysis of Nonlinear Train-Track-Bridge System Shock and Vibration |
| title | Application of KLE-PEM for Random Dynamic Analysis of Nonlinear Train-Track-Bridge System |
| title_full | Application of KLE-PEM for Random Dynamic Analysis of Nonlinear Train-Track-Bridge System |
| title_fullStr | Application of KLE-PEM for Random Dynamic Analysis of Nonlinear Train-Track-Bridge System |
| title_full_unstemmed | Application of KLE-PEM for Random Dynamic Analysis of Nonlinear Train-Track-Bridge System |
| title_short | Application of KLE-PEM for Random Dynamic Analysis of Nonlinear Train-Track-Bridge System |
| title_sort | application of kle pem for random dynamic analysis of nonlinear train track bridge system |
| url | http://dx.doi.org/10.1155/2020/8886737 |
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