Research Article
Knowledge-Based Structure Optimization Design for Boom of Excavator
Table 2
Structure shape code encoding.
| | Code bits | Meaning | Code value | | 0 | 1 | 2 | 3 | 4 |
| | 3 | ∠BFD | ≤15° | >15° | — | — | — | | 4 | ∠BCF-∠DCF | ≤−5° | >−5°∼0° | >0° | — | — | | 5 | Rough classification of shapes | Straight boom | Bent boom | — | — | — | | 6 | Detailed classification of shapes | No subdivision shape | Gooseneck shape | Three-section | Connecting rod connection | Bolt connection | | 7 | Number of hydraulic cylinders | Single hydraulic cylinder | Double hydraulic cylinder | — | — | — |
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