Research Article
Vibration Test and Shock Absorption of Coal Crusher Chambers in Thermal Power Plants (II): Numerical Analysis
Table 8
Parameters of spring vibration-isolation system under each vibration-isolation efficiency.
| | Varying parameter | Parameters of the isolators | Vibration-isolation efficiency | | 90% | 80% | 70% | 60% |
| | Stiffness of spring vibration isolators | Vertical stiffness (kN/m) | 1150 | 2109 | 2920 | 3616 | | Horizontal stiffness (kN/m) | 897 | 1645 | 2278 | 2820 | | Vertical damping factor (kN·s/m) | 9.8 | 13.3 | 15.6 | 17.4 | | Horizontal damping factor (kN·s/m) | 9.8 | 13.3 | 15.6 | 17.4 | | Mass of vibration-isolation platform (t) | 8 |
| | Mass of vibration-isolated platform | Vertical stiffness (kN/m) | 2920 | | Horizontal stiffness (kN/m) | 2278 | | Vertical damping factor (kN·s/m) | 24.9 | 18.4 | 15.6 | 14.1 | | Horizontal damping factor (kN·s/m) | 24.9 | 18.4 | 15.6 | 14.1 | | Mass of vibration-isolation platform (t) | 72.4 | 24.1 | 8 | 0 |
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