DOI QR코드

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Numerical analysis of interference galloping of two identical circular cylinders

  • Blazik-Borowa, E. (Department of Structural Mechanics, Faculty Civil and Sanitary Engineering, Lublin Technical University) ;
  • Flaga, A. (Department of Structural Mechanics, Faculty Civil and Sanitary Engineering, Lublin Technical University)
  • 발행 : 1998.09.25

초록

The paper deals with numerical analysis of interference galloping of two elastically supported circular cylinders of equal diameters. The basis of the analysis is quasi-steady model of this phenomenon. The model assumes that both cylinders participate in process of interference galloping and they have two degrees of freedom. The movement of the cylinders is written as a set of four nonlinear differential equations. On the basis of numerical solutions of this equations the authors evaluate the correctness of this quasi-steady model. Then they estimate the dependence of a critical reduced velocity on the Scruton number, turbulence intensity and arrangements of the cylinders.

키워드

참고문헌

  1. Zdravkovich, M.M. and Pridden, D.L. (1977), "Interference between two identical circular cylinders; series of unexpected discontinutites" , J. of Ind. Aerodynamics, 2, 255-270. https://doi.org/10.1016/0167-6105(77)90026-5
  2. Ruscheweyh, H (1983), "Aeroelastic interference effects between slender structures", J. of Wind Eng. and Ind. Aerodynamics, 14, 129-140. https://doi.org/10.1016/0167-6105(83)90017-X
  3. Ruscheweyh, H. and Dielen, B. (1992), "Interference galloping-investigations concerning the phase lag of the flow switching", J. of Wind Eng. and Ind. Aerodynamics, 41-44, 2047-2056.
  4. Kazakiewicz, M.I., Grafskij, I.J., Riedko, S.F. (1985), "Idientyfikacja ultragarmoniczeskich awtokolebanij priaerodinamiczieskoj interfierencji tandema krugowych cilindrow w skoszennom potokie", Doklady ukrainskoj akadiemi nauk, Kiev, 27-30.
  5. Shiraishi, N., Matsumoto, M. and Shirato, H. (1986), "On aerodynamic instabilities of tandem structures" , J. of Wind Eng. and Ind. Aerodynamics, 23, 437-447. https://doi.org/10.1016/0167-6105(86)90061-9
  6. Matsumoto, M., Shiraishi, N. and Shirato, H. (1990), "Aerodynamic instabilities if twin circular cylinders", J. of Wind Eng. and Ind. Aerodynamics, 33, 91-100. https://doi.org/10.1016/0167-6105(90)90024-7
  7. Sun, T.F. and Gu, Z.F. (1995), "Interference between wid loading on group of structures", J. of Wind Eng. and Ind. Aerodynamics, 54/55, The Proc. of 3rd Asia-Pacific Symp. 1993, 1995, 213-225. https://doi.org/10.1016/0167-6105(94)00051-E
  8. Blazik-Borowa, E., Flaga, A., Kazakiewicz, M.I. (1996), "Problems of interference galloping of two circular vylinders" , Studia z zakresu inZynierii, 42, Warsaw 1996.
  9. Watzinger, J. (1996). Interferenzerregte Schwingungen zweier engstehender querangerstromter Zylinder, Dissertation TU Wien, 1996.
  10. Sockel, H. and Watzinger, J. (1997), Vibrations of two circular cylinders due to wind excited interference effects", The Proc of 2nd European & African Conf. on Wind Eng., Genova, 1807- 1813.
  11. Dielen, B. and Ruscheweyh, H. (1995), Mechanism of interference galloping of two identical circular cylinder in cross flow" , J. of Wind Eng. and Ind. Aerodynamics, 54/55, The Proc. of 3rd Asia-Pacific Symp. 1993, 1995, 289-300. https://doi.org/10.1016/0167-6105(94)00048-I
  12. Blazik-Borowa, E. and Flaga, A. (1996), "Modelling of aerodynamic loads on a downstream cylinder caused by bistable flow between two circular cylinders" , J. of Wind Eng. and Ind. Aerodynamics, 65, 361-370. https://doi.org/10.1016/S0167-6105(97)00054-8
  13. Blazik-Borowa, E. and Flaga, A. (1995), "Quasi-steady models of aerodynamic loads on two circular cylinders in staggered arrangement" , The Proc. Ninth International Conference on Wind Engineering, 1, New Delhi, 95-107.
  14. Zdravkovich, M. and Medeiros,E. (1991), "Effect of damping on interference-induced oscillations of two identical circular cylinders", J. of Wind Eng. and Ind. Aerodynamic, 197-211.
  15. Studnickova, M. (1994), "Induced vibrations of leeward ropes - A practical example", The Proc. East European Conference on Wind Engineering "EECWE '94", Part 1, 3, Warsaw, 49-59.
  16. EUROCODE 1 : Part 6, Wind Loading. Draft, December 1993.

피인용 문헌

  1. Interference loads of two cylinders in a side-by-side arrangement vol.9, pp.1, 2006, https://doi.org/10.12989/was.2006.9.1.075
  2. Wake galloping phenomena between two parallel/unparallel cylinders vol.18, pp.5, 2014, https://doi.org/10.12989/was.2014.18.5.511