Research Article
Dynamic Response and Parameter Analysis of Electromagnetic Railguns under Time Varying Moving Loads
Table 4
Summary of results for comparison.
| | Parameter | Foundation stiffness, k (GPa) | Rail width, b (mm) | Rail height, h (mm) |
| | Value | 7 | 10 | 15 | 8 | 10 | 12 | 18 | 20 | 22 | | Muzzle velocity (m/s) | 1072.0 | 1072.0 | 1072.0 | 1085.1 | 1072.0 | 1056.9 | 1079.2 | 1072.0 | 1065.9 | | Relative reduction rate | 0 | 0 | 0 | 0 | 1.2% | 2.6% | 0 | 0.7% | 1.2% | | Maximum vibration amplitude (×10−4 m) | 2.55 | 1.78 | 1.17 | 1.89 | 1.78 | 1.62 | 2.19 | 1.78 | 1.46 | | Relative reduction rate | 0 | 30.2% | 54.1% | 0 | 5.8% | 14.3% | 0 | 18.7% | 33.3% |
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