External suction-blowing method for controlling vortex-induced vibration of a bridge

To suppress the vortex-induced vibration (VIV) of long-span bridges, an active flow control method, i.e. the external suction-blowing method (ESBM), is proposed in this study based on the efficiency of the three-dimensional spanwise-varying flow control method and the suction/blowing flow control method. The method can be achieved by cyclically arranging suction and blowing on the undersurface of the bridge. The effectiveness of the method for the vertical and torsional VIV of the bridge sectional model is verified through wind tunnel tests. The test results imply that the best perturbation position of the ESBM is the leading edge of the undersurface of the bridge. For dimensionless spanwise distances of 2–4 with single-hole flow coefficients of 2.27 × 10−3–3.03 × 10−3 and 1.45 × 10−3–1.94 × 10−3 during vertical and torsional VIV, respectively, the VIV can be completely suppressed. The results of the wake analysis show that this method can effectively suppress the scale of the spanwise vortex of the bridge, causing the VIV to disappear.

• Record URL:
  https://doi.org/10.1016/j.jweia.2021.104661
• Record URL:
  http://www.sciencedirect.com/science/article/pii/S016761052100146X
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01676105
• Supplemental Notes:
  • © 2021 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Xue, Zhicheng
  • Han, Bin
  • Zhang, Hongfu
  • Xin, Dabo
  • Zhan, Jian
  • Wang, Rui
• Publication Date: 2021-8

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References;
• Serial:
  • Journal of Wind Engineering & Industrial Aerodynamics
  • Volume: 215
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0167-6105
  • Serial URL: https://www.sciencedirect.com/journal/journal-of-wind-engineering-and-industrial-aerodynamics

Subject/Index Terms

• TRT Terms: Aerodynamic force; Long span bridges; Vibration; Wind; Wind tunnels
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 01775679
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 30 2021 12:00PM