Table 12 Optimization parameters of four optimization methods
From: Structural Stress–Fatigue Life Curve Improvement of Spot Welding Based on Quasi-Newton Method
Optimization method | C1 | C2 | C3 | C4 |
|---|---|---|---|---|
SFFXY | 1 | 0.0456 | 0.02 | ‒ |
SFFZ | 0.6 | 1.07 × 10−5 | 5.95 × 10−7 | ‒ |
SFMXY | 0.6 | 0.023 | 4.11 × 10−7 | ‒ |
DEFXY | 0 | 2.77 × 10−5 | 2.46 × 10−6 | 1.84 × 10−5 |
DEFZ | 0 | 2.65 × 10−5 | 1.92 × 10−6 | 3.49 × 10−5 |
DEMXY | 0 | 1.44 × 10−5 | 1.04 × 10−6 | 0.13 |
TEFXY | 0 | 4.58 × 10−5 | 1.17 × 10−6 | 2.30 × 10−4 |
TEFZ | 0.5 | 7.95 × 10−5 | 3.28 × 10−6 | 1.50 × 10−4 |
TEMXY | 0.5 | 4.00 × 10−4 | 7.06 × 10−7 | 2.00 × 10−4 |