Research Article
Free and Forced Vibration Analysis of Airtight Cylindrical Vessels with Doubly Curved Shells of Revolution by Using Jacobi-Ritz Method
Table 3
The frequency parameters
of the ECE vessel.
| Mode number | | | | 0.25 | 0.75 | 1 | 1.5 | 2 | 4 |
| 1 | 1 | 0.21294 | 0.20016 | 0.19303 | 0.17892 | 0.16554 | 0.12115 | 2 | 0.28211 | 0.38297 | 0.37333 | 0.35314 | 0.33271 | 0.25608 | 3 | 0.34942 | 0.51601 | 0.51518 | 0.50953 | 0.49062 | 0.38977 | 4 | 0.40583 | 0.54892 | 0.54102 | 0.52504 | 0.51931 | 0.50164 | 5 | 0.48499 | 0.57600 | 0.57432 | 0.57110 | 0.56761 | 0.52089 |
| 2 | 1 | 0.04915 | 0.04599 | 0.04449 | 0.04165 | 0.03901 | 0.03023 | 2 | 0.16195 | 0.15409 | 0.14986 | 0.14118 | 0.13230 | 0.09610 | 3 | 0.29253 | 0.28359 | 0.27743 | 0.26314 | 0.24612 | 0.16737 | 4 | 0.33434 | 0.40855 | 0.40148 | 0.38216 | 0.35420 | 0.24808 | 5 | 0.41344 | 0.51765 | 0.51034 | 0.48569 | 0.44557 | 0.33182 |
| 3 | 1 | 0.03379 | 0.03286 | 0.03242 | 0.03159 | 0.03083 | 0.02832 | 2 | 0.09443 | 0.09063 | 0.08874 | 0.08499 | 0.08126 | 0.06605 | 3 | 0.18303 | 0.17682 | 0.17348 | 0.16637 | 0.15855 | 0.11518 | 4 | 0.27993 | 0.27265 | 0.26824 | 0.25796 | 0.24463 | 0.16372 | 5 | 0.37353 | 0.36688 | 0.36189 | 0.34871 | 0.32661 | 0.22331 |
|
|