Research Article
Reducing the Collision Damage Done to the Tips of Steel Needles during Integrated Piercing by Using Shape Optimization with Feature Selection
Table 6
Feasible area of needle diameter under strength constraint.
| | Point | Constraint plane | Fmax | dned |
| | A′ | Z = 6.056 × 107 Pa | ≥3.18 N | 0.8 × 10−3 m | | Z = 6.056 × 107 Pa | 1 N | ≥1.1 × 10−3 m | | Z = −6.056 × 107 Pa | ≤27.62 N | 0.8 × 10−3 m | | Z = −6.056 × 107 Pa | 50 N | ≥1.159 × 10−3 m | | A″ | Z = 6.056 × 107 Pa | ≤44 N | 0.8 × 10−3 m | | Z = 6.056 × 107 Pa | 50 N | ≥0.86 × 10−3 m | | Z = −6.056 × 107 Pa | ≥3.33 N | 0.8 × 10−3 m | | Z = −6.056 × 107 Pa | 1 N | ≥1.1 × 10−3 m |
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