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Shock and Vibration
/
2021
/
Article
/
Tab 8
/
Research Article
A Multimode Approach to Geometrically Nonlinear Free and Forced Vibrations of Multistepped Beams
Table 8
The first four eigenvalues for clamped-clamped tapered beams varying in depth with a taper ratio denoted by
:
and
.
ā
Mode index
1
2
3
4
Present work
4.4812
7.4397
10.4164
13.3922
[
34
]
4.4808
7.4390
10.4155
13.3911
Rel diff (%)
0.0094
0.009
0.008
0.007