Research Article
Vibrational Study of Fluid-Filled Functionally Graded Cylindrical Shells Resting on Elastic Foundations
Table 3
Comparison of natural frequency for a simply-supported type I & II FGM cylindrical shells (, , , ).
| | Shell | | | | | | Loy et al. [6] | Present | Loy et al. [6] | Present | Loy et al. [6] | Present |
| | Type I | 1 | 13.321 | 13.321 | 13.103 | 13.103 | 12.933 | 12.933 | | 2 | 4.5168 | 4.5162 | 4.4435 | 4.4433 | 4.3834 | 4.3829 | | 3 | 4.1911 | 4.1903 | 4.1235 | 4.1233 | 4.0653 | 4.0646 | | 4 | 7.0972 | 7.0967 | 6.9820 | 6.9819 | 6.8856 | 6.8851 | | 5 | 11.336 | 11.335 | 11.151 | 11.151 | 10.999 | 10.998 |
| | Type II | 1 | 13.103 | 13.103 | 13.321 | 13.321 | 13.505 | 13.504 | | 2 | 4.4382 | 4.4376 | 4.5114 | 4.5104 | 4.5759 | 4.5754 | | 3 | 4.1152 | 4.1145 | 4.1827 | 4.1813 | 4.2451 | 4.2443 | | 4 | 6.9754 | 6.9749 | 7.0905 | 7.0897 | 7.1943 | 7.1938 | | 5 | 11.145 | 11.144 | 11.329 | 11.329 | 11.494 | 11.493 |
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