Effects of Attached Masses on the Instability and Vibration Suppression of a Flexible Pipe Conveying Fluid

유체유동에 의한 유연한 파이프의 불안정과 진동억제에 미치는 부가질량의 영향

  • 류봉조 (대전산업대학교 기계설계공학과) ;
  • 정승호 (한국원자력연구소) ;
  • 이종원 (충남대학교 대학원 기계공학과)
  • Published : 2000.04.01

Abstract

The paper deals with vibration suppression and dynamic stability of a vertical cantilevered pipe conveying an internal flowing fluid and having an attached mass. Real pipe systems may have some valves or mechanical attached parts, which can be regarded as attached lumped masses. The effect of attached mass on the dynamic stability of a cantilevered pipe conveying fluid is investigated for different locations and magnitudes of the attached mass. The flow rate was controlled through motor pump output and measured by a flow meter. Experimental resutls in the vicinity of flutter fluid velocity were compared with theoretical predictions. It has been found that the experimental results are in substantial agreement with the theoretical predictions. Finally, in order to suppress the vibration of the pipe subjected to a disturbance, and control technique using an internal flowing fluid is introduced.

Keywords

References

  1. Journal of Applied Mechanics v.17 Bending Vibrations of a Pipeline Containing Flowing Fluid Ashley,H.;Haviland.G.
  2. Inzhenernyi Sbornik v.10 Vibration and Stabillty of a Pipe when Liquid Flows Through It Feodos'ev,V.P.
  3. Journal of Applied Mechanics v.19 Bending Vibrations of a Pipe Line Containing Flowing Fluid Housner,G.W.
  4. Kungliga Tekniska Hogskolans Handingar(Stockholm) no.73 Vibrations of a Cylindrical Tube Containing Flowing Fluid Niordson,F.I.
  5. Proceedings of the Royal Society (London),Series A v.261 Dynamics of a System of Articulated Pipes Conveying Fluid(I. Theory) Benjamin,T.B.
  6. Proceedings of the Royal Society (London),Series A v.261 Dynamics of a System of Articulated Pipes Conveying Fluid (Ⅱ.Experiment) Benjamin,T.B.
  7. Proceedings of the Royal Society(London),Series A v.293 Unstable Oscillation of Tubular Cantilevers Conveying Fluid (I.Theory) Gregory,R.W.;Paidoussis,M.P.
  8. Proceedings of the Royal Society (Lodon),Series A. v.293 Unstable Oscillation of Tubular Cantilevers Conveying Fluid (Ⅱ.Experiment) Gregory,R.W.;Paidoussis,M.P.
  9. Journal of Engineering Mechanics Division,Proceedings of the ASCE v.97 Dynamic Stability of Tube Conveying Fluid Chen,S.S.
  10. Maschinenbautechnik v.28 Zum Stabilitatsverhalten des Durchstromten Geraden Rohres Mit Elasticher Querstutzung Becker,O.
  11. Journal of Sound and Vibration v.100 Effect of a Spring Support on the Stabilty of Pipes Conveying Fluid Sugiyama,Y.;Tanaka,Y.;Kishi,T.;Kawagoe,H.
  12. JSME International Journal,Seres 1 v.31 Studies on the Stability of Pipes Conveying Fluid (The Combined Effect of a Spring Support and a Lumped Mass) Sugiyama,Y.;Kawagoe,H.Kishi,T.;Nishiyama,S.
  13. Proceedings 3rd International Symposium on Fluid~Induced Vibration and Noise v.8 Active Flutter Suppression of a Vertical Pipe Conveying Fluid Sugiyama,Y.;Katayama,T.;Kanki,E.;Nishino,K.;Akesson,B.
  14. JSME International Journal,Series B v.39 Stability of Vertical Fluid Conveying Pipes having the Lower End Immersed in Fluid Sugiyama,Y.;Katayama,T.;Kanki,E.;Chiba,M.;Shiraki,K.;Fujita,K.