Dynamic Response of a Vehicle-Bridge Expansion Joint Coupled System
The paper investigates the dynamic vibration property of the vehicle-bridge expansion joint coupled system with the proposed model. The dynamic response of the expansion joint under the action of the vehicle is the key factor affecting the life of the expansion joint. The changes of contact state an...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2022/1621589 |
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| _version_ | 1832552215890362368 |
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| author | Lu Zhang Shaohua Wang Bing Li |
| author_facet | Lu Zhang Shaohua Wang Bing Li |
| author_sort | Lu Zhang |
| collection | DOAJ |
| description | The paper investigates the dynamic vibration property of the vehicle-bridge expansion joint coupled system with the proposed model. The dynamic response of the expansion joint under the action of the vehicle is the key factor affecting the life of the expansion joint. The changes of contact state and tire geometric characteristics were frequently left aside in the past to simplify the tire model. This is because the contact between tire and expansion joint is a very complex process. But this will seriously underestimate the impact effect of the vehicle on the expansion joint. In this paper, a dynamic mathematical model of the 2-axle vehicle-modular bridge expansion joint (MBEJ) coupled system is established by introducing a flexible roller tire model. The influence of tread rigid displacement and change in the tire contact patch length are considered in the dynamic model. Based on this model, the characteristics of the dynamic tire load and the center beam vibration displacement in the coupled system are obtained by simulation. The results show that the maximum dynamic tire load of the vehicle occurs at the end of the bridge deck behind the MBEJ, so local structure reinforcement needs to be considered. The interaction between the front and rear wheels of the 2-axle vehicle can be ignored. The vehicle position, vehicle velocity, gap width, and spring stiffness of the center beam bearing have significant effects on the impact factors of tire load and center beam vibration displacement. The impact factor of tire load may exceed the recommended values of Chinese and European bridge codes. These should be taken seriously. |
| format | Article |
| id | doaj-art-3920b24efc1b4ee7ab75c040452e6808 |
| institution | Kabale University |
| issn | 1875-9203 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-3920b24efc1b4ee7ab75c040452e68082025-02-03T05:59:11ZengWileyShock and Vibration1875-92032022-01-01202210.1155/2022/1621589Dynamic Response of a Vehicle-Bridge Expansion Joint Coupled SystemLu Zhang0Shaohua Wang1Bing Li2Automation Research Institute Co., Ltd. of China South Industries Group CorporationSchool of Mechanical EngineeringSchool of Mechanical EngineeringThe paper investigates the dynamic vibration property of the vehicle-bridge expansion joint coupled system with the proposed model. The dynamic response of the expansion joint under the action of the vehicle is the key factor affecting the life of the expansion joint. The changes of contact state and tire geometric characteristics were frequently left aside in the past to simplify the tire model. This is because the contact between tire and expansion joint is a very complex process. But this will seriously underestimate the impact effect of the vehicle on the expansion joint. In this paper, a dynamic mathematical model of the 2-axle vehicle-modular bridge expansion joint (MBEJ) coupled system is established by introducing a flexible roller tire model. The influence of tread rigid displacement and change in the tire contact patch length are considered in the dynamic model. Based on this model, the characteristics of the dynamic tire load and the center beam vibration displacement in the coupled system are obtained by simulation. The results show that the maximum dynamic tire load of the vehicle occurs at the end of the bridge deck behind the MBEJ, so local structure reinforcement needs to be considered. The interaction between the front and rear wheels of the 2-axle vehicle can be ignored. The vehicle position, vehicle velocity, gap width, and spring stiffness of the center beam bearing have significant effects on the impact factors of tire load and center beam vibration displacement. The impact factor of tire load may exceed the recommended values of Chinese and European bridge codes. These should be taken seriously.http://dx.doi.org/10.1155/2022/1621589 |
| spellingShingle | Lu Zhang Shaohua Wang Bing Li Dynamic Response of a Vehicle-Bridge Expansion Joint Coupled System Shock and Vibration |
| title | Dynamic Response of a Vehicle-Bridge Expansion Joint Coupled System |
| title_full | Dynamic Response of a Vehicle-Bridge Expansion Joint Coupled System |
| title_fullStr | Dynamic Response of a Vehicle-Bridge Expansion Joint Coupled System |
| title_full_unstemmed | Dynamic Response of a Vehicle-Bridge Expansion Joint Coupled System |
| title_short | Dynamic Response of a Vehicle-Bridge Expansion Joint Coupled System |
| title_sort | dynamic response of a vehicle bridge expansion joint coupled system |
| url | http://dx.doi.org/10.1155/2022/1621589 |
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