Research Article
Analytical and Experimental Vibration of Sandwich Beams Having Various Boundary Conditions
Table 4
The natural frequencies (Hz) for cantilever beam with two different thicknesses.
| Modes | = 15 mm | = 25 mm | GDQ method | Experiment | GDQ method | Experiment |
| 1 | 118.00 | 111.19 | 143.92 | 143.02 | 2 | 381.00 | 364.60 | 452.27 | 475.21 | 3 | 719.84 | 680.80 | 821.86 | 824.33 | 4 | 1141.94 | 1063.50 | 1261.56 | 1323.81 | 5 | 1675.51 | 1652.07 | 1800.17 | 1772.60 |
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