Zc. Xi et al., FREE-VIBRATION OF A PARTIALLY FLUID-FILLED CROSS-PLY LAMINATED COMPOSITE CIRCULAR CYLINDRICAL-SHELL, The Journal of the Acoustical Society of America, 101(2), 1997, pp. 909-917
Free vibration of a partially fluid-filled cross-ply laminated composi
te circular cylindrical shell is investigated using a semi-analytical
procedure based on the Reissner-Mindlin theory and compressible fluid
equations. The shell is modeled using unaxisymmetric shear deformable
circular cylindrical shell elements. The fluid is modeled using column
fluid elements. The equation of motion of the partially fluid-filled
shell is derived using the Hamilton's variational principle. Numerical
examples are given for free vibrations of partially fluid-filled orth
otropic and cross-ply laminated composite circular cylindrical shells
with various boundary conditions. Numerical results indicate that the
fluid filling can reduce significantly the natural frequencies of orth
otropic and cross-ply laminated composite circular cylindrical shells.
(C) 1997 Acoustical Society of America.