Research Article
Determination of Optimal Drop Height in Free-Fall Shock Test Using Regression Analysis and Back-Propagation Neural Network
Table 5
Maximum errors (ME) of height by BPNN and regression analysis.
| | Item | Case | | Case 1 (cm) | Case 2 (cm) | Case 3 (cm) | Case 4 (cm) | Average ME (cm) |
| | Training patterns | | | | | | | BPNN | 2.404 × 10−9 | 1.532 × 10−10 | 1.608 × 10−10 | 6.280 × 10−11 | 6.952 × 10−10 | | Regression | 0.498 | 1.421 × 10−13 | 5.4 × 10−13 | 8.530 × 10−14 | 0.1245 | | Test patterns | | | | | | | BPNN | 0.215 | 0.375 | 1.796 | 0.1147 | 0.6252 | | Regression | 0.178 | 0.112 | 3.411 | 0.046 | 0.937 |
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