Research Article
Microstructural Topology Optimization of Constrained Layer Damping on Plates for Maximum Modal Loss Factor of Macrostructures
Table 7
Topological designs of viscoelastic damping material microstructures with the same volume fraction.
| | Mode 1 | Mode 2 | Mode 3 |
| Volume fraction | 0.3 | 0.3 | 0.3 | Microstructure | | | | Convergence histories | | | | Number of iterations | 48 | 116 | 44 | Computational cost (s) | 2367.75 | 5837.99 | 2163.63 | Effective storage shear modulus (MPa) | | | | Modal loss factor of optimal design | 0.0402 | 0.0416 | 0.0532 |
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