Research Article
Multiobjective Topology Optimization of Spatial-Structure Joints
Table 8
Comparison of the joints’ performance.
| Parameters | Hollow joint | Optimized joint | Difference% |
| Weight/kg | 358.6 | 359.8 | 0.3 | Axial condition stress/MPa | 445.0 | 276.6 | −37.8 | Axial condition displacement/mm | 1.12 | 0.56 | −50.0 | Shear condition stress/MPa | 259.0 | 144.4 | −44.2 | Shear condition displacement/mm | 0.63 | 0.41 | −34.9 | Bending moment condition stress/MPa | 224.3 | 146.4 | −34.7 | Bending moment condition displacement/mm | 0.17 | 0.20 | 17.6 | Combined condition stress/MPa | 369.6 | 229.4 | −37.9 | Combined condition displacement/mm | 0.936 | 0.407 | −46.5 | 1st frequency/Hz | 159.13 | 213.91 | 34.4% |
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