Research Article
Free Vibration Analysis of a Rotating Composite Shaft Using the -Version of the Finite Element Method
Table 5
The critical speed (rpm) of the
graphite-epoxy composite shaft for various lamination angles.
| |
Theory or method | Lamination angle () | | 0 | 15 | 30 | 45 | 60 | 75 | 90 |
| | Sanders shell
| 5527 | 4365 | 3308 | 2386 | 2120 | 2020 | 1997 | | Bert and Kim [22]
| Bernoulli-Euler | 6425
| 5393
| 4269
| 3171
| 2292
| 1885
| 1813
| | Bresse-Timoshenko | 6072 | 5209 | 4197 | 3143 | 2278 | 1874 | 1803 |
| |
M.-Y. Chang
et al. [6] | Continuum-based
Timoshenko | 6072 | 5331 | 4206 | 3124 | 2284 | 1890 | 1816 | | beam theory
|
| | Timoshenko beam theory by the | 6094 | 5359 | 4222 | 3129 | 2284 | 1890 | 1816 | | Present | -version of the finite
element | | method |
|
|
