ON THE MATHEMATICAL MODEL OF NONLINEAR VIBRATIONS OF CIRCULAR CYLINDRICAL SHELLS WITH INITIAL IMPERFECTIONS |
| 6 | |
| 2009 |
| MECHANICS |
| scientific article | 539.3:534.1 | ||
| 137-141 | circular cylindrical shell, initial imperfections, nonlinear vibrations, splitting of the frequency spectrum |
| The mathematical model based on the shallow shell theory equations has been defined more precisely. The initial imperfections have been found to result in interaction between shell flexural and radial vibrations. The flexural frequency spectrum is slightly split, and the fundamental frequency decreases as compared with the perfect shell case. Skeleton curves of the shell with initial imperfections are of the «mild» type. |
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