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Mathematical Problems in Engineering
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2019
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Article
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Tab 6
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Research Article
A Unified Approach of Free Vibration Analysis for Stiffened Cylindrical Shell with General Boundary Conditions
Table 6
Comparison of natural frequencies (HZ) of cylindrical shells with simply supported boundaries.
=1
=2
FEM
GM
present
FEM
GM
present
1
1147.0
1143.5
1145.4
1257.7
1253.3
1255.5
2
1021.0
1019.5
1020.2
1681.8
1678.6
1679.2
3
1960.5
1958.3
1959.3
2214.5
2213.6
2212.1
4
3440.5
3435.6
3438.9
3795.2
3792.9
3794.3