Research Article
Robust Assignment of Natural Frequencies and Antiresonances in Vibrating Systems through Dynamic Structural Modification
Table 10
Test-case 3: original and modified system design variables and constraints.
| | Parameter | Value | Modification bounds | Modified system with robustness (proposed method) |
| | m1 (kg) | 25.000 | [−12.50; 25.00] | 27.500 | | m2 (kg) | 25.000 | [−12.50; 25.00] | 39.866 | | m3 (kg) | 25.000 | [−12.50; 25.00] | 27.531 | | ρA (kgm−1) | 15.800 | [−7.90; 7.90] | 21.813 | | kl (Nm−1) | 1.00e3 | — | 1.00e3 | | kr (Nm−1) | 1.00e3 | — | 1.00e3 | | k1 (Nm−1) | 8.70e5 | — | 8.70e5 | | k2 (Nm−1) | 8.70e5 | — | 8.70e5 | | k3 (Nm−1) | 8.70e5 | — | 8.70e5 | | (Nm−1) | 1.00e5 | [−0.5e5; 7e5] | 1.22e5 | | (Nm−1) | 1.00e5 | [−0.5e5; 7e5] | 7.76e5 | | (Nm−1) | 1.00e5 | [−0.5e5; 7e5] | 1.24e5 | | EI (Nm2) | 1.50e5 | [−0.75e5; 0.75e5] | 0.77e5 |
|
|
