Browse > Article

Fluid-elastic Instability Evaluation of Steam Generator Tubes  

Cho, Young Ki (Department of Safety Engineering, Chungbuk National University)
Park, Jai Hak (Department of Safety Engineering, Chungbuk National University)
Publication Information
International Journal of Safety / v.11, no.1, 2012 , pp. 1-5 More about this Journal
Abstract
It has been reported that the plugged steam generator tube of Three Mile Island Unit 1 in America was damaged by growing flaw and then this steam generator tube destroyed the nearby steam generator tubes of normal state. On this account, stabilizer installation is necessary to prevent secondary damage of the steam generator tubes. The flow-induced vibration is one of the major causes of the fluid-elastic instability. To guarantee the structural integrity of steam generator tubes, the flow-induced vibration caused by the fluid-elastic instability is necessary to be suppressed. In this paper, the effective velocity and the critical velocity are calculated to evaluate the fluid-elastic instability. In addition, stability ratio value of the steam generator tubes is evaluated in order to propose one criterion when to determine stabilizer installation.
Keywords
steam generator tube; fluid-elastic instability; stability ratio; stabilizer; anti-vibration bar;
Citations & Related Records
연도 인용수 순위
  • Reference
1 M. E Warner, 2001 Meeting Regarding a TMI Unit 1 Steam Generator Severed Tube, NRC, AmerGen Energy Company, 5928-01-20335, 2001.
2 K. W. Ryu and C. Y. Park, "Flow-induced Vibration of the CE-type Steam Generator Tube", KSME Spring Conference, pp. 828-833, 2001.
3 ANSYS, V. 12.0., ANSYS Structural Analysis Guide, ANSYS. INC. 2011.
4 Y. K. Cho and J. H. Park, "Finite Element Analysis of Steam Generator Tubes Considering Gap Effects", APSS, pp. 489-492, 2011.
5 N. J. Livingston, "Steam Generator Tube Fatigue Evaluation", Electric Power Research Institute, TR-107263, 1996.
6 S. S. Chen and H. Chung, "Design Guide for Calculating Hydrodynamic Mass Part I : Circular Cylindrical Structures", Argonne National Laboratory, 1976.
7 H. J. Jr. Connors, "Fluid-elastic Vibration of Heat Exchanger Tube Arrays", ASME Publication 77-DET- 90., 1977.
8 H. J. Jr. Connors, "Fluid-elastic Vibration of Tube Arrays Excited by Nonuniform Cross Flow", ASME, PVP-41, p. 93, 1980.