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Vortex Excited Vibrations

  • H. Ruscheweyh
Part of the International Centre for Mechanical Sciences book series (CISM, volume 335)

Abstract

A short description of the phenomena of vortex shedding is presented. Strouhal numbers for different cross sections are presented for the calculation of the critical wind speed. The locking-in effect is explained which leads to the correlation consideration which is the basis of a mathematical model for the use in the practical engineering work. The application to cantilevered and simple supported structures is shown.

The prediction of the vortex resonance amplitude is compared with full scale measurements and with two other mathematical models. The effect of aerodynamic devices is explained.

Keywords

Wind Speed Reynolds Number Mode Shape Circular Cylinder Vortex Resonance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Morsbach, M.: The conditions for generating the vortex street behind circular cylinders, Dissertation RWTH Aachen, 1967 (in german)Google Scholar
  2. 2.
    Roshko, A.: Experiments on the flow past a circular cylinder at very high Reynolds number. J. Fluid Mech., Vol. 10 (1961) P. 345–356CrossRefMATHGoogle Scholar
  3. 3.
    Ruscheweyh, H.: Dynamic wind action on structures, Vol. I and II, Bauverlag Wiesbaden, 1982, (in german)Google Scholar
  4. 4.
    Ruscheweyh, H. and Hortmans, M.: Systematic investigation of wind-induced vibrations of slender elements in respect to practical design rules. Research report of the Institute of Steel Construction of the University Aachen, 1992Google Scholar
  5. 5.
    Ruscheweyh, H.: Tip effect on vortex-excited oscillation of a model stack of cantilevered cylinders with and without efflux stream. IUTAM-Symp. on Flow-Induced Structural Vibrations, Karlsruhe 1972Google Scholar
  6. 6.
    Johns, D.J. and Sharma, C.B.: On the mechanismn of wind-excited ovalling vibrations of thin circular cylindrical shells. Proc. of the Symp. Flow-Induced Vibrations, Karlsruhe 1972, pp. 650–662, Springer-Verlag 1974Google Scholar
  7. 7.
    Scruton, C.: On the wind-excited oscillations of stacks, towers and masts. Symp. on Wind Effects on Buildings and Structures, Vol. II, NPL, Teddington, 1963, pp. 798–832, Her Majesty’s Stat. Office 1965Google Scholar
  8. 8.
    Vickery, B.J. and Basu, R.I.: Across-wind vibrations of structures of circular cross-section, Part I and II, J. of Wind Ing. and Industr. Aerodyn., Vol. 12, N) 1 (1983) pp. 49–97CrossRefGoogle Scholar
  9. 9.
    Ruscheweyh, H. and Sedlacek, G.: Crosswind vibrations of steel stacks.–Critical comparison between some recently proposed codes -. J. of Wind Eng. and Industr. Aerodyn., Vol. 30 (1988) pp. 173–183CrossRefGoogle Scholar
  10. 10.
    Ruscheweyh, H.: Practical experiences with wind-induced vibrations, J. of Wind Eng. and Industr. Aerodyn., Vol. 33 (1990) pp. 211–218CrossRefGoogle Scholar
  11. 11.
    Galemann, T. and Ruscheweyh, H.: Measurements of wind-induced vibrations of a full-scale steel chimney. Progress in Wind Engineering, Part 1 pp. 241–252, Proc. of the, Elsevier 1992, 8th Intern. Conf. on Wind Engineering, Canada 1991Google Scholar
  12. 12.
    CICIND Model Code for steel chimneys, Commentaries March 1989Google Scholar
  13. 13.
    ISO: TC 98/SC 3/WG 2: Wind Actions on StructuresGoogle Scholar
  14. 14.
    Zdravkovich, M.M.: Review and clasification of various aerodynamic and hydrodynamic means for suppressing vortex shedding. Journ. of Wind Eng. and Industr. Aerodyn., 7 (1981) pp. 145–189CrossRefGoogle Scholar
  15. 15.
    Ruscheweyh, H.: Measures against dangerous vibrations of chimneys, Symp. Aeroelastic Problems, Curt-Risch-Institute, Univ. Hannover, 1978 (in german)Google Scholar

Copyright information

© Springer-Verlag Wien 1994

Authors and Affiliations

  • H. Ruscheweyh
    • 1
  1. 1.Aachen University of TechnologyAachenGermany

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