Research Article
Free Vibration Exploration of Rotating FGM Porosity Beams under Axial Load considering the Initial Geometrical Imperfection
Table 2
The first nondimensional frequency
of the FGM beam depends on the porosity parameter
.
| | L/h | n = 0.2 | n = 0.5 | n = 1.0 | CCS [46] | This work | CCS [46] | This work | CCS [46] | This work |
| 0 | 5 | 1.8823 | 1.8892 | 1.7392 | 1.7416 | 1.5844 | 1.5820 | 10 | 1.0884 | 1.0896 | 0.9992 | 1.0022 | 0.9056 | 0.9109 | 20 | 0.5691 | 0.5693 | 0.5213 | 0.5217 | 0.4716 | 0.4724 | 0.2 | 5 | 1.9205 | 1.9272 | 1.7402 | 1.7395 | 1.5210 | 1.5129 | 10 | 1.1092 | 1.1105 | 0.9956 | 0.9989 | 0.8606 | 0.8661 | 20 | 0.5797 | 0.5799 | 0.5186 | 0.5192 | 0.4465 | 0.4477 |
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