Research Article
Microstructural Topology Optimization of Constrained Layer Damping on Plates for Maximum Modal Loss Factor of Macrostructures
Table 8
Topological designs of viscoelastic damping material microstructures for maximizing modal loss factors with different volume fractions.
| | Mode 1 | Mode 2 | Mode 3 |
| Volume fraction | 0.2 | 0.8 | 0.6 | Microstructure | | | | Convergence histories | | | | Number of iterations | 40 | 43 | 41 | Computational cost (s) | 2046.78 | 2352.25 | 2152.28 | Effective storage shear modulus (MPa) | | | | Modal loss factor of optimal design | 0.0492 | 0.0524 | 0.0590 | Modal loss factor of traditional design | 0.0189 | 0.0516 | 0.0564 |
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