A comparative study of axisymmetric finite elements for the vibration of thin cylindrical shells conveying fluid

Yong Liang Zhang, Jason M. Reese, Daniel G. Gorman

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11 Citations (Scopus)

Abstract

A comparative study of the relative performance of several different axisymmetric finite elements, when applied to the dynamic problem of thin cylindrical shells conveying fluid, is presented. The methods used are based on (1) the Sanders' theory of thin shells and the potential flow theory, and (2) the theory of elasticity and the Euler equations. The elements studied are: linear, paralinear, parabolic and cubilinear. Extensive comparison with experiment is carried out for the free vibration of cylindrical shells in the absence of, and containing, quiescent and flowing fluid. The analysis of the relative competence of these elements is presented for shell length-to-radius ratios 1.95L/R32, shell radius-to-thickness ratios 10R/h375 and boundary conditions: clamped-clamped, clamped-free and simply supported. We show that natural frequencies of thin cylindrical shells in the absence of, and containing, quiescent and flowing fluid can be assessed accurately when using two- and eight-noded elements, and the latter are also applicable to the dynamic problem of thick cylindrical shells.
Original languageEnglish
Pages (from-to)89-110
Number of pages21
JournalInternational Journal for Numerical Methods in Engineering
Volume54
Issue number1
DOIs
Publication statusPublished - 20 Feb 2002

Keywords

  • vibration
  • thin cylindrical shell conveying fluid
  • finite element method
  • axisymmetric finite element
  • natural frequency
  • dynamic analysis

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