Research Article
Improved Genetic Algorithm with Two-Level Approximation Method for Laminate Stacking Sequence Optimization by Considering Engineering Requirements
Table 2
Practical optima of cone-cylinder structure.
| Laminate
Co: conic part
Cy: cylindrical part | Plies | Weight, kg | , Hz | |
| | −452/0/45/0/45s | (Co)—12 | 0.5622 | 1713.0 | 6.0637 | | −45/90/0/45/−45/45/02s | (Cy)—16 |
| | 0/45/0/45/−452/0s | (Co)—14 | 0.5623 | 1735.4 | 6.5342 | | 902/−45/0/45/−45/45/0s | (Cy)—16 |
| | 452/0/−45/452/−45s | (Co)—14 | 0.5623 | 1702.2 | 6.9326 | | 90/−45/90/0/45/0/−45/0s | (Cy)—16 |
| | 452/0/45/0/−45/45s | (Co)—14 | 0.5723 | 1738.1 | 6.9188 | | 90/45/−45/0/45/−45/45/0s | (Cy)—16 |
| | 452/−452/0/45s | (Co)—12 | 0.5403 | 1709.2 | 5.9711 | | 90/45/0/−452/0/45/0s | (Cy)—16 |
| | 45/−452/45/−45/0s | (Co)—12 | 0.5914 | 1715.1 | 6.2208 | | −45/45/−45/90/45/90/02/45s | (Cy)—18 |
| | −45/02/−45/0/−45/0s | (Co)—14 | 0.6134 | 1710.1 | 6.8836 | | 0/−45/90/45/90/45/−452/0s | (Cy)—18 |
| | 0/45/−45/0/−45/0/−452s | (Co)—16 | 0.5843 | 1742.9 | 6.5043 | | 90/45/−45/0/−45/0/45/0s | (Cy)—16 |
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