Research Article
Multiobjective Lightweight Optimization Design Method for a Dump Truck Carriage under Multiple Working Conditions
Table 8
Multiobjective optimal solution set for multiple working conditions.
| | No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| | Base plate crossbeam (mm) | 5.13 | 5.11 | 5.00 | 5.10 | 5.08 | 5.03 | 9.92 | 9.50 | | Main longitudinal beam (mm) | 26.15 | 30.66 | 20.00 | 20.25 | 23.12 | 30.21 | 40.00 | 48.20 | | Base plate (mm) | 3.02 | 3.10 | 3.00 | 3.05 | 3.03 | 3.10 | 5.96 | 7.98 | | Side panels (mm) | 5.48 | 5.09 | 5.00 | 5.12 | 5.48 | 5.09 | 8.29 | 5.17 | | Crossbar (mm) | 4.45 | 4.07 | 3.00 | 4.25 | 4.23 | 4.07 | 4.67 | 7.60 | | Longitudinal beam (mm) | 6.55 | 6.13 | 3.00 | 5.72 | 6.46 | 6.13 | 3.08 | 6.47 | | Mass (t) | 1.5951 | 1.6836 | 1.2887 | 1.4136 | 1.5096 | 1.6663 | 2.4294 | 2.8273 | | Stiffness (N·mm−1) | 34699.09 | 34703.55 | 33940.49 | 34659.71 | 34695.43 | 34701.45 | 33125.50 | 34304.89 | | Modal (Hz) | 23.92 | 25.10 | 21.24 | 21.77 | 22.85 | 24.85 | 34.55 | 34.72 | | Full-load strain (mm) | 12.09 | 11.87 | 14.47 | 14.06 | 13.29 | 12.41 | 11.91 | 9.39 | | Full-load stress (MPa) | 330.86 | 313.78 | 410.04 | 394.70 | 381.34 | 343.90 | 317.57 | 308.35 | | 0° strain (mm) | 7.83 | 8.04 | 8.04 | 8.16 | 7.96 | 8.04 | 8.12 | 8.46 | | 0° stress (MPa) | 319.52 | 318.84 | 308.38 | 316.34 | 320.73 | 318.40 | 327.48 | 361.31 |
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