MECHANISM OF INTERFERENCE GALLOPING OF TWO IDENTICAL CIRCULAR CYLINDER IN CROSS FLOW

Cylinders placed close together may be excited by a self- sustained oscillation, the so-called "interference galloping". This phenomenon occurs at critical wind directions crit, when the wind speed exceeds a critical wind speed (onset velocity uo). Large vibration amplitudes may be established and structural safety may be affected. This paper presents results of current experimental investigations of two identical cylinders placed in cross flow with small spacing ratios and low Scruton numbers. Ideas for a theoretical solution of the problem are explained and discussed.

  • Supplemental Notes:
    • J Wind Engng and Industrial Aerodynamics, v 54,55, Feb 1995, p 289 [12 p, 4 ref, 16 fig]
  • Authors:
    • Dielen, B
    • Ruscheweyh, H
  • Publication Date: 1995

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00710710
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM