Research Article
A Multimode Approach to Geometrically Nonlinear Free and Forced Vibrations of Multistepped Beams
Table 4
Comparison between normalized first nonlinear modes
and
for
.
| | | | | |
| | 1.95307055960 | 0.995041432592128 | 31.9292939558 | 0.005546040320137 | | 1.95307055960 | 0.9950414325921284 | 31.9292939558 | 0.005546040320142 | Difference | — | 4.4408E−16 | — | 5.381E−15 |
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