Research Article
Model Reduction Technique Tailored to the Dynamic Analysis of a Beam Structure under a Moving Load
Table 2
Wheel-rail contact model parameters.
| Notation | Parameter | Value |
| | Car body mass | 9665 kg | | Wheelset mass | 1650 kg | | Primary suspension stiffness | N/m | | Primary suspension damping | N × s/m | | Wheel radius | 0.43 m | | Rail mass per meter | 60.8 kg/m | | Rail density | 7747 kg/m3 | | Young’s modulus of rail | 210 GPa | | Moment of inertia of rail | m4 | | Rail bed stiffness | N/m | | Rail bed damping | N × s/m | | Rail bed spacing | 0.625 m | | Rail length | 20 m | | Number of elements between rail beds | | | Vehicle speed | 250 km/h | DCM | | | | Integration time step | 1 × 10−6 s | | Frequency | 20 × 2π Hz | IRS method | | | | Integration time step | 1 × 10−5 s | SEREP | | | | Integration time step | 1 × 10−5 s | | Number of retained modes | |
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