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A meshless computational framework for a modified dynamic system of vehicle coupled with plate structure
Engineering Structures, Volume: 312, Start page: 118140
Swansea University Author:
Adesola Ademiloye
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DOI (Published version): 10.1016/j.engstruct.2024.118140
Abstract
In previous simulations of train-bridge interaction systems (TBIS), the supporting system for the train are commonly treated as beam structures, leading to less accurate results, particularly for small-span cases. To address this limitation, a modified vertical TBIS is proposed. In the presented TBI...
Published in: | Engineering Structures |
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ISSN: | 0141-0296 |
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Elsevier BV
2024
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v2 66322 2024-05-07 A meshless computational framework for a modified dynamic system of vehicle coupled with plate structure e37960ed89a7e3eaeba2201762626594 0000-0002-9741-6488 Adesola Ademiloye Adesola Ademiloye true false 2024-05-07 EAAS In previous simulations of train-bridge interaction systems (TBIS), the supporting system for the train are commonly treated as beam structures, leading to less accurate results, particularly for small-span cases. To address this limitation, a modified vertical TBIS is proposed. In the presented TBIS, the supporting system is considered as a Reissner-Mindlin plate, and the displacement field is described by first-order shear deformation theory (FSDT). To establish the model, radial point interpolation method(RPIM), a meshless method, is employed. Finally, a coupled dynamic equation is established to calculate various responses of the system. Several numerical examples are presented to illustrate the disparities between the system based on plate model and traditional beam model. The results indicate that the beam model yields higher estimates of the mid-span vertical displacement of the bridge, while the peak of the mid-span vertical acceleration is smaller compared to the plate model; additionally, it is observed that the carbody is primarily influenced by rail irregularities. Consequently, the proposed plate model offers distinct advantages over the beam model in providing comprehensive structural response information, thereby offering novel insights into bridge design and analysis. Additionally, this marks the inaugural application of themeshless method in the field of TBIS, which further extends the application scope of meshless methods. Journal Article Engineering Structures 312 118140 Elsevier BV 0141-0296 Train–bridge interaction system; Meshless method; Computational plate-shell mechanics; High-speed railway; Rail irregularity 1 8 2024 2024-08-01 10.1016/j.engstruct.2024.118140 COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University This work was funded by the 2023 Hunan Province Transportation Science and Technology Progress and Innovation Project (202305) and the Henan Province Science and Technology Key Research Project (242102521034). 2024-06-13T14:48:40.8540564 2024-05-07T17:22:12.8998998 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Zhanjun Shao 0000-0002-5605-103x 1 Han Zhao 2 Peng Zhang 3 Xiaonan Xie 4 Adesola Ademiloye 0000-0002-9741-6488 5 Ping Xiang 0000-0002-1636-4111 6 66322__30306__4abf9a96d94e4211b52e6eb40bb07cb9.pdf 66322.pdf 2024-05-07T17:25:45.7296968 Output 18394933 application/pdf Accepted Manuscript true Author accepted manuscript document released under the terms of a Creative Commons CC-BY licence using the Swansea University Research Publications Policy (rights retention). true eng https://creativecommons.org/licenses/by/4.0/deed.en |
title |
A meshless computational framework for a modified dynamic system of vehicle coupled with plate structure |
spellingShingle |
A meshless computational framework for a modified dynamic system of vehicle coupled with plate structure Adesola Ademiloye |
title_short |
A meshless computational framework for a modified dynamic system of vehicle coupled with plate structure |
title_full |
A meshless computational framework for a modified dynamic system of vehicle coupled with plate structure |
title_fullStr |
A meshless computational framework for a modified dynamic system of vehicle coupled with plate structure |
title_full_unstemmed |
A meshless computational framework for a modified dynamic system of vehicle coupled with plate structure |
title_sort |
A meshless computational framework for a modified dynamic system of vehicle coupled with plate structure |
author_id_str_mv |
e37960ed89a7e3eaeba2201762626594 |
author_id_fullname_str_mv |
e37960ed89a7e3eaeba2201762626594_***_Adesola Ademiloye |
author |
Adesola Ademiloye |
author2 |
Zhanjun Shao Han Zhao Peng Zhang Xiaonan Xie Adesola Ademiloye Ping Xiang |
format |
Journal article |
container_title |
Engineering Structures |
container_volume |
312 |
container_start_page |
118140 |
publishDate |
2024 |
institution |
Swansea University |
issn |
0141-0296 |
doi_str_mv |
10.1016/j.engstruct.2024.118140 |
publisher |
Elsevier BV |
college_str |
Faculty of Science and Engineering |
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Faculty of Science and Engineering |
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Faculty of Science and Engineering |
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School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering |
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description |
In previous simulations of train-bridge interaction systems (TBIS), the supporting system for the train are commonly treated as beam structures, leading to less accurate results, particularly for small-span cases. To address this limitation, a modified vertical TBIS is proposed. In the presented TBIS, the supporting system is considered as a Reissner-Mindlin plate, and the displacement field is described by first-order shear deformation theory (FSDT). To establish the model, radial point interpolation method(RPIM), a meshless method, is employed. Finally, a coupled dynamic equation is established to calculate various responses of the system. Several numerical examples are presented to illustrate the disparities between the system based on plate model and traditional beam model. The results indicate that the beam model yields higher estimates of the mid-span vertical displacement of the bridge, while the peak of the mid-span vertical acceleration is smaller compared to the plate model; additionally, it is observed that the carbody is primarily influenced by rail irregularities. Consequently, the proposed plate model offers distinct advantages over the beam model in providing comprehensive structural response information, thereby offering novel insights into bridge design and analysis. Additionally, this marks the inaugural application of themeshless method in the field of TBIS, which further extends the application scope of meshless methods. |
published_date |
2024-08-01T14:48:40Z |
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1801754006842769408 |
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11.021648 |