Research Article
Reliability-Based Design Optimization for Crane Metallic Structure Using ACO and AFOSM Based on China Standards
Table 3
Statistical properties of the random variables
.
| Random variable | Distribution | Mean value () | COV () |
| Lifting capacity () | Normal | kg | | Trolley weight () | Normal | kg | | Elasticity modulus () | Normal | Pa | | Design variables () | Normal | mm | |
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