Research Article

Modeling and Vibration Analysis of a Porous Rotational Shell Based on Biot Theory

Table 3

Comparison of natural frequency.

Order (m, n)Present method (Hz)FEM (Hz)

(1, 1)76.3774.72
(1, 2)181.93180.92
(1, 3)233.78234.92
(1, 4)369.00375.60
(1, 5)610.50621.37