Wind and Structures

  • 제23권3호
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  • Pages.171-189
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  • 2016
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Aerodynamic performance of a novel wind barrier for train-bridge system

  • He, Xuhui (School of Civil Engineering, Central South University) ;
  • Shi, Kang (School of Civil Engineering, Central South University) ;
  • Wu, Teng (Department of Civil, Structural and Environmental Engineering, University at Buffalo-The State Univ.) ;
  • Zou, Yunfeng (School of Civil Engineering, Central South University) ;
  • Wang, Hanfeng (School of Civil Engineering, Central South University) ;
  • Qin, Hongxi (School of Civil Engineering, Central South University)
  • 투고 : 2016.03.30
  • 심사 : 2016.06.17
  • 발행 : 2016.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

An adjustable, louver-type wind barrier was introduced in this study for improving the running safety and ride comfort of train on the bridge under the undesirable wind environment. The aerodynamic characteristics of both train and bridge due to this novel wind barrier was systematically investigated based on the wind tunnel tests. It is suggested that rotation angles of the adjustable blade of the louver-type wind barrier should be controlled within $90^{\circ}$ to achieve an effective solution in terms of the overall aerodynamic performance of the train. Compared to the traditional grid-type wind barrier, the louver-type wind barrier generally presents better aerodynamic performance. Specifically, the larger decrease of the lift force and overturn moment of the train and the smaller increase of the drag force and torsional moment of the bridge resulting from the louver-type wind barrier were highlighted. Finally, the computational fluid dynamics (CFD) technique was applied to explore the underlying mechanism of aerodynamic control using the proposed wind barrier.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundations of China

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  7. Effects of Wind-Barrier Layout and Wind Turbulence on Aerodynamic Stability of Cable-Supported Bridges vol.25, pp.12, 2016, https://doi.org/10.1061/(asce)be.1943-5592.0001631
  8. Influence of wind barrier on the transient aerodynamic performance of high-speed trains under crosswinds at tunnel-bridge sections vol.15, pp.1, 2021, https://doi.org/10.1080/19942060.2021.1918257
  9. A co-simulation method for the analysis of train running performance on a sea-crossing bridge in crosswind environment vol.24, pp.3, 2021, https://doi.org/10.1177/1369433220956830
  10. Research on wind barrier of canyon bridge-tunnel junction based on wind characteristics vol.24, pp.5, 2016, https://doi.org/10.1177/1369433220971730
  11. Experimental Study of Aerodynamic Interference Effects for a Suspended Monorail Vehicle-Bridge System Using a Wireless Acquisition System vol.21, pp.17, 2021, https://doi.org/10.3390/s21175841