Research Article
Size and Topology Optimization for Trusses with Discrete Design Variables by Improved Firefly Algorithm
Table 4
Optimum solutions of the 25-bar spatial truss for the different algorithms.
| | Element group | Optimal cross-sectional areas (cm2) | | RDQA | GATS | FA | IFA | | (Chai et al. 1999 [28]) | (Luo 2006 [29]) |
| | (1) | 0 | 0 | 0 | 0 | | (2) | 12.671 | 10.839 | 10.839 | 10.839 | | (3) | 21.483 | 21.483 | 21.483 | 21.483 | | (4) | 0 | 0 | 0 | 0 | | (5) | 0 | 0 | 0 | 0 | | (6) | 6.452 | 7.742 | 6.452 | 6.452 | | (7) | 14.581 | 12.671 | 12.671 | 12.671 | | (8) | 14.581 | 14.581 | 14.581 | 14.581 | | Weight (kg) | 275.0 | 262.97 | 256.91 | 256.91 | | Number of structural static analyses | — | 750 | 1245 | 570 |
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