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A Case Study of Dynamic Response Analysis and Safety Assessment for a Suspended Monorail System

Author

Listed:
  • Yulong Bao

    (Department of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China)

  • Yongle Li

    (Department of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China)

  • Jiajie Ding

    (Department of Bridge Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China)

Abstract

A suspended monorail transit system is a category of urban rail transit, which is effective in alleviating traffic pressure and injury prevention. Meanwhile, with the advantages of low cost and short construction time, suspended monorail transit systems show vast potential for future development. However, the suspended monorail has not been systematically studied in China, and there is a lack of relevant knowledge and analytical methods. To ensure the health and reliability of a suspended monorail transit system, the driving safety of vehicles and structure dynamic behaviors when vehicles are running on the bridge should be analyzed and evaluated. Based on the method of vehicle-bridge coupling vibration theory, the finite element method (FEM) software ANSYS and multi-body dynamics software SIMPACK are adopted respectively to establish the finite element model for bridge and the multi-body vehicle. A co-simulation method is employed to investigate the vehicle-bridge coupling vibration for the transit system. The traffic operation factors, including train formation, track irregularity and tire stiffness, are incorporated into the models separately to analyze the bridge and vehicle responses. The results show that the coupling of dynamic effects of the suspended monorail system between vehicle and bridge are significant in the case studied, and it is strongly suggested to take necessary measures for vibration suppression. The simulation of track irregularity is a critical factor for its vibration safety, and the track irregularity of A-level road roughness negatively influences the system vibration safety.

Suggested Citation

  • Yulong Bao & Yongle Li & Jiajie Ding, 2016. "A Case Study of Dynamic Response Analysis and Safety Assessment for a Suspended Monorail System," IJERPH, MDPI, vol. 13(11), pages 1-17, November.
    • Handle: RePEc:gam:jijerp:v:13:y:2016:i:11:p:1121-:d:82597
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    References listed on IDEAS

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    1. Feng Chen & Suren Chen & Xiaoxiang Ma, 2016. "Crash Frequency Modeling Using Real-Time Environmental and Traffic Data and Unbalanced Panel Data Models," IJERPH, MDPI, vol. 13(6), pages 1-16, June.
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