Table 13.
Comparison results of pressure-vessel design problem.
| Algorithm | Optimal values for variables | Optimum cost | |||
|---|---|---|---|---|---|
| T s | T h | R | L | ||
| SRGS-EHO | 0.850468 | 0.420387 | 44.065679 | 153.694517 | 6020.753071 |
| EO | 0.898401 | 0.444080 | 46.549292 | 128.317630 | 6124.239342 |
| WOA | 1.040632 | 0.511766 | 50.905188 | 91.322007 | 6775.807533 |
| HHO | 1.079160 | 0.543392 | 55.469516 | 60.115203 | 6715.912450 |
| DE | 0.812500 | 0.437500 | 42.098353 | 176.637751 | 6059.725800 |
| ES | 0.812500 | 0.437500 | 42.098087 | 176.640518 | 6059.745600 |
| PSO | 0.812500 | 0.437500 | 42.091266 | 176.746500 | 6061.077700 |
| OBSCA | 3.000000 | 0.875000 | 66.148100 | 159.303600 | 6958.988200 |
| ISCA | 0.8125 | 0.4375 | 42.09842 | 176.6382 | 6059.745738 |
| EWOA | 10.0625 | 0.50 | 58.17399 | 44.38294 | 6177.754912 |