Research Article
Upset Prediction in Friction Welding Using Radial Basis Function Neural Network
Table 4
Comparison between FE simulated upsets and RBF predicted ones.
| No. | Condition | Upset (mm) | Absolute error (mm) | Relative error (%) | FE simulated | RBF predicted |
| 1 | 300 MPa—147.8 rad/s | 1.96 | 2.12 | 0.16 | 8.16 | 2 | 300 MPa—157.8 rad/s | 3.72 | 3.64 | 0.08 | 2.15 | 3 | 300 MPa—167.8 rad/s | 5.53 | 5.23 | 0.30 | 5.42 | 4 | 400 MPa—147.8 rad/s | 5.38 | 5.35 | 0.03 | 0.56 | 5 | 400 MPa—157.8 rad/s | 7.09 | 7.06 | 0.03 | 0.42 | 6 | 400 MPa—167.8 rad/s | 8.75 | 8.83 | 0.08 | 0.91 | 7 | 500 MPa—147.8 rad/s | 7.72 | 7.64 | 0.08 | 1.04 | 8 | 500 MPa—157.8 rad/s | 9.43 | 9.54 | 0.11 | 1.17 | 9 | 500 MPa—167.8 rad/s | 11.63 | 11.5 | 0.13 | 1.12 |
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