Research Article
Investigation on Free Vibration of Rotating Cylindrical Shells with Variable Thickness
Table 2
DFP of backward wave
for the RCS.
| | n | Saito and Endo [27] | Present | nmax = 8 | nmax = 9 | nmax = 10 | nmax = 11 | nmax = 12 | nmax = 13 |
| 0.0025 | 2 | 0.05993 | 0.05989 | 0.05987 | 0.05987 | 0.05986 | 0.05986 | 0.05986 | 3 | 0.11455 | 0.11462 | 0.11461 | 0.11461 | 0.11461 | 0.114641 | 0.11461 | 4 | 0.21313 | 0.21317 | 0.21317 | 0.21317 | 0.21316 | 0.21316 | 0.21316 | 5 | 0.34225 | 0.34226 | 0.34226 | 0.34226 | 0.34225 | 0.34225 | 0.34225 |
| 0.0050 | 2 | 0.06216 | 0.06212 | 0.06210 | 0.06210 | 0.06209 | 0.06209 | 0.06209 | 3 | 0.11652 | 0.11660 | 0.11659 | 0.11659 | 0.11659 | 0.11659 | 0.11659 | 4 | 0.21486 | 0.21490 | 0.21490 | 0.21490 | 0.21490 | 0.21490 | 0.21490 | 5 | 0.34380 | 0.34381 | 0.34381 | 0.34381 | 0.34381 | 0.34381 | 0.34381 |
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