Research Article
Analysis of Antideformation and Antivibration Effect of Different Track Beds under Subway Train Vibration
Table 5
Orbital physical parameters.
| | Rail | Value |
| | Bulk density (N/m3) | 7.83 × 1011 | | Mass per unit length (kg/m) (monorail) | 60.64 | | Modulus of elasticity (Pa) | 2.10 × 1011 | | Poisson’s ratio (μ) | 0.3 | | Track bed | Value | | Bulk density (N/m3) (cross-sectional area1.08 m2) | 2300 | | Mass per unit length (kg/m) (velocity direction) | 2484 | | Modulus of elasticity (Pa) | 3.25 × 1010 | | Poisson’s ratio (μ) | 0.25 |
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