Structural Engineering and Mechanics

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Modal analysis of eccentric shells with fluid-filled annulus

  • Received : 2000.05.08
  • Accepted : 2002.05.03
  • Published : 2002.07.25
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Abstract

Investigated in this study are the modal characteristics of the eccentric cylindrical shells with fluid-filled annulus. Theoretical method is developed to find the natural frequencies of the shell using the finite Fourier expansion, and their results are compared with those of finite element method to verify the validation of the method developed. The effect of eccentricity on the modal characteristics of the shells is investigated using a finite element modeling.

Keywords

References

  1. ANSYS (1998), ANSYS Structural Analysis Guide, ANSYS, Inc., Houston.
  2. Chen, S.S. and Rosenberg, G.S. (1975), "Dynamics of a coupled shell-fluid system", Nuclear Engineering and Design, 32, 302-310. https://doi.org/10.1016/0029-5493(75)90101-6
  3. Chung, H. (1981), "Free vibration analysis of circular cylindrical shells", J. Sound Vib., 74, 331-350. https://doi.org/10.1016/0022-460X(81)90303-5
  4. Danila, E.B., Conoir, J.M. and Izbicki, J.L. (1995), "The generalized Debye series expansion : treatment of the concentric and non-concentric cylindrical fluid-fluid interfaces", J. Acoust. Soc. Am., 98, 3326-3342.
  5. Jeong, K.H. (1998), "Natural frequencies and mode shapes of two coaxial cylindrical shells coupled with bounded compressible fluid", J. Sound Vib., 215, 105-124. https://doi.org/10.1006/jsvi.1998.1648
  6. Jeong, K.H. and Kim, K.J. (1998), "Free vibration of a circular cylindrical shell filled with bounded compressible fluid", J. Sound Vib., 217, 197-221. https://doi.org/10.1006/jsvi.1998.1741
  7. Jeong, K.H. and Lee, S.C. (1996), "Fourier series expansion method for free vibration analysis of either a partially fluid-filled or a partially fluid-surrounded circular cylindrical shell", Comput. & Struct., 58, 937-946. https://doi.org/10.1016/0045-7949(95)00197-O
  8. Jhung, M.J. (1996), "Shell response of core barrel for tributary pipe break", Int. J. Pressure Vessels and Piping, 69(2), 175-183. https://doi.org/10.1016/0308-0161(95)00130-1
  9. Jhung, M.J. (2000), Modal analysis of coaxial shells with fluid-filled annulus, KINS/RR-021, Korea Institute of Nuclear Safety.
  10. Sneddon, N. (1951), Fourier Transforms, McGraw-Hill Book, New York.
  11. Song, S.H. and Jhung, M.J. (1999), "Experimental modal analysis on the core support barrel of reactor internals using a scale model", KSME Int. J., 13(8), 585-594.
  12. Watson, G.N. (1980), A Treatise on the Theory of Bessel Functions, second edition, Cambridge University Press, Cambridge.
  13. Yoshikawa, S., Williams, E.G. and Washburn, K.B. (1994), "Vibration of two concentric submerged cylindrical shells coupled by the entrained fluid", J. Acoust. Soc. Am., 95, 3273-3286. https://doi.org/10.1121/1.410021

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  3. Free vibration analysis of perforated plate submerged in fluid vol.20, pp.9, 2006, https://doi.org/10.1007/BF02915955
  4. Natural vibration characteristics of a clamped circular plate in contact with fluid vol.21, pp.2, 2005, https://doi.org/10.12989/sem.2005.21.2.169