Research Article
Two Strategies to Improve the Differential Evolution Algorithm for Optimizing Design of Truss Structures
Table 7
Performance comparison of the 120-bar truss.
| | Element group | Cross-sectional areas (in2) | | Lu et al. [29] | This work | | PSO | PSOPC | AugPSO | DE | EDE | EDE-1 | EDE-2 | EDE-3 | EDE-4 |
| | 1 | 3.331 | 3.325 | 3.287 | 3.287 | 3.288 | 3.288 | 3.288 | 3.288 | 3.288 | | 2 | 5.397 | 5.972 | 3.486 | 3.572 | 3.545 | 3.549 | 3.556 | 3.560 | 3.555 | | 3 | 4.513 | 4.505 | 4.256 | 4.255 | 4.254 | 4.254 | 4.254 | 4.254 | 4.254 | | 4 | 3.272 | 3.026 | 2.752 | 2.754 | 2.753 | 2.753 | 2.753 | 2.753 | 2.753 | | 5 | 1.674 | 0.914 | 1.353 | 1.301 | 1.317 | 1.315 | 1.311 | 1.309 | 1.311 | | 6 | 6.459 | 4.153 | 3.507 | 3.508 | 3.507 | 3.507 | 3.507 | 3.507 | 3.507 | | 7 | 3.548 | 2.415 | 2.411 | 2.404 | 2.406 | 2.405 | 2.405 | 2.405 | 2.405 | | Weightbest (lb) | 26728.980 | 22654.325 | 20675.545 | 20666.393 | 20665.883 | 20665.825 | 20665.861 | 20665.944 | 20665.884 | | Weightworst (lb) | 53777.510 | 38471.212 | 21678.621 | 20716.242 | 20668.554 | 20673.359 | 20669.575 | 20667.394 | 20671.517 | | Weightmean (lb) | 31401.182 | 26424.703 | 21175.514 | 20671.274 | 20666.137 | 20666.462 | 20666.391 | 20666.309 | 20666.580 | | Weightmedian (lb) | — | — | — | 20667.828 | 20665.989 | 20665.986 | 20666.074 | 20666.153 | 20666.231 | | Weightstdev (lb) | 5653.241 | 4103.610 | 259.105 | 10.423 | 0.488 | 1.400 | 0.882 | 0.356 | 1.235 | | Nanalyses | — | — | — | 10000 | 10000 | 10000 | 10000 | 10000 | 10000 |
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