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| Dynamic substructure method for analysis of railway track to high frequency excitation |
| Revised:March 25, 1999 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20003062 |
| KeyWord:dynamic substructure,wheel/rail,high frequency vibration,mechanic receptance,wheel/rail noise |
| Wei Wei |
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| Abstract: |
| A new railway track model for high frequency vibration, which includes the deformation of rail's cross\|section, the discrete supports and cross receptance, has been established. A wheel/rail contact characteristic have been introduced into the method of substructure impedance condensation to calculate the receptance. The result shows that rail vibrates as a rigid body below 800 Hz, the deformation of rail's cross\|section will happen at the frequency higher than 800 Hz, The model predicting results have a better coherence with the experiments one. Chinese railway track receptance has been predicted, the 1 st and 2 nd resonances are 150 Hz and 320 Hz respectively, the pinned\|pinned resonance is 1280 Hz. |
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