Research Article
Robust Assignment of Natural Frequencies and Antiresonances in Vibrating Systems through Dynamic Structural Modification
Table 1
Summary of the computational details of the test cases.
| | | Test-case 1 | Test-case 2 | Test-case 3 | Test-case 4 |
| | CPU runtime (s) | 52.1 | 20.7 | 137.0 | 180.4 | | Number of DOFs: N | 5 | 5 | 13 | 26 | | Number of assigned natural frequencies: Np | 1 | 0 | 1 | 0 | | Number of assigned antiresonances: Nz | 0 | 1 | 0 | 1 | | Number of assigned sensitivities: Ns | 3 | 2 | 3 | 1 | | Number of design variables Nx | 10 | 6 | 8 | 25 | | Number of unassigned right eigenvector entries u | 4 | 3 | 12 | 24 | | Number of unassigned right eigenvector entries l | - | 3 | - | 24 | | Number of bilinear variables b, | 12 | 6 | 56 | 181 | | Number of trilinear variables t | 4 | 1 | 30 | 135 |
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