Research Article
A Fast Modeling Technique for the Vertical Train-Track-Bridge Interactions
Table 4
Dynamic amplification factors of the wheel-rail contact forces.
| | Cases | (1) TL | (2) TL + DC | ((2)-(1))/(1) (%) percentage of DC effect |
| | 1st wheelset | Max DAF | 1.0132 | 1.0511 | 3.7406 | | Min DAF | 0.9834 | 0.9486 | −3.5387 |
| | 2nd wheelset | Max DAF | 1.0142 | 1.0526 | 3.7862 | | Min DAF | 0.9855 | 0.9480 | −3.8052 |
| | 3rd wheelset | Max DAF | 1.0126 | 1.0503 | 3.7231 | | Min DAF | 0.9837 | 0.9490 | −3.5275 |
| | 4th wheelset | Max DAF | 1.0137 | 1.0518 | 3.7585 | | Min DAF | 0.9856 | 0.9482 | −3.7946 |
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TL : train load; DC : displacement correction; DAF: dynamic amplification factors. The minus sign means wheel-rail contact forces reduction.
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