Dynamic stiffness method for free vibrations analysis of partial fluid-filled orthotropic circular cylindrical shells

Authors

  • Tran Ich Thinh Hanoi University of Science and Technology
  • Nguyen Manh Cuong
  • Vu Quoc Hien

DOI:

https://doi.org/10.15625/0866-7136/37/1/5508

Keywords:

Free vibration, continuous element method, dynamic stiffness method, orthotropic cylindrical shell, fluid-shell interaction

Abstract

Free vibrations of partial fluid-filled orthotropic circular cylindrical shells are investigated using the Dynamic Stiffness Method (DSM) or Continuous Element Method (CEM) based on theFirst Order Shear Deformation Theory (FSDT) and non-viscous incompressible fluid equations. Numerical examples are given for analyzing natural frequencies and harmonic responses of cylindrical shells partially and completely filled with fluid under various boundary conditions. The vibration frequencies for different filling ratios of cylindrical shells are obtained and compared with existing experimental and theoretical results which indicate that the fluid filling can reduce significantly the natural frequencies of studiedcylindrical shells. Detailed parametric analysis is carried out to show the effects of some geometrical and material parameters on the natural frequencies of orthotropic cylindrical shells. The advantages of this current solution consist in fast convergence, low computational cost and high precision validating for all frequency ranges.

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

Downloads

Published

28-02-2015

How to Cite

Thinh, T. I., Cuong, N. M., & Hien, V. Q. (2015). Dynamic stiffness method for free vibrations analysis of partial fluid-filled orthotropic circular cylindrical shells. Vietnam Journal of Mechanics, 37(1), 43–56. https://doi.org/10.15625/0866-7136/37/1/5508

Issue

Section

Research Paper

Most read articles by the same author(s)

1 2 3 > >>