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Mathematical Problems in Engineering
/
2019
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Article
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Tab 3
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Research Article
A Unified Approach of Free Vibration Analysis for Stiffened Cylindrical Shell with General Boundary Conditions
Table 3
Comparison of natural frequencies of stiffened cylindrical shells with free boundaries with
m
=1.
n
GRM
PRM
FEM
present
1
0.1997
0.1983
0.2065
0.2064
2
0.0851
0.0851
0.0895
0.0895
3
0.0689
0.0704
0.0742
0.0744
4
0.1092
0.1147
0.1123
0.1157
5
0.1728
0.1836
0.1569
0.1656