Research Article
A Novel Prediction Model for Car Body Vibration Acceleration Based on Correlation Analysis and Neural Networks
Table 2
The prediction variables selected through correlation analysis.
| | Car body_HACCEL (g) | Car body_VACCEL (g) | Car body_LACCEL (g) |
| | | | | | | | | | | | Superelev (mm) | -0.50 | -0.25 | L Surf 1 (mm) | -0.23 | -0.20 | Mileage (km) | -0.49 | -0.49 | | Curve (rad/km) | -0.14 | -0.18 | R Surf 1 (mm) | -0.27 | -0.22 | Gauge (mm) | 0.16 | 0.11 | | C_IRREG_LEFT (mm) | 0.31 | 0.19 | L Surf 2 (mm) | -0.29 | -0.24 | Superelev (mm) | 0.26 | 0.24 | | C_IRREG_RIGHT (mm) | 0.30 | 0.18 | R Surf 2 (mm) | -0.32 | -0.26 | Curve (rad/km) | 0.29 | 0.26 | | CURVE_RATE (rad/km/m) | -0.15 | -0.11 | L Surf 3 (mm) | -0.31 | -0.25 | Speed(kph) | -0.48 | -0.60 | | LOFFSET (mm) | -0.22 | 0.05 | R Surf 3 (mm) | -0.35 | -0.29 | CURVE_RATE (rad/km/m) | -0.11 | -0.09 | | ROFFSET (mm) | -0.27 | 0.04 | L Surf 4 (mm) | -0.17 | -0.12 | LOFFSET (mm) | 0.25 | 0.20 | | LSURFACE (mm) | -0.43 | -0.31 | R Surf 4 (mm) | -0.21 | -0.16 | ROFFSET (mm) | 0.23 | 0.20 | | RSURFACE (mm) | 0.39 | 0.26 | - | - | - | LSURFACE (mm) | -0.18 | -0.15 | | YAW (deg/s) | 0.12 | 0.14 | - | - | - | YAW (deg/s) | -0.21 | -0.19 | | - | - | - | - | - | - | BOGIE_FRAME_HACCEL (g) | 0.43 | 0.44 | | - | - | - | - | - | - | BOGIE_FRAME_VACCEL (g) | 0.41 | 0.42 | | Total number 10 | Total number 8 | Total number 12 |
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