Research Article
Dynamic Modeling of a Vibrating Screen Considering the Ore Inertia and Force of the Ore over the Screen Calculated with Discrete Element Method
Table 3
Parameters of empty vibrating screen used for the dynamical simulations.
| | Force amplitude, (N) | 1322071 | | Frequency, (Hz) | 15.75 | | Force direction, (°) | 135 | | Slope, (°) | 5 | | Horizontal stiffness, (N/m) | 2064000 | | Vertical stiffness, (N/m) | 4992000 | | Horizontal damping, (Ns/m) | 100000 | | Vertical damping, (Ns/m) | 50000 | | Mass of empty vibrating screen, (kg) | 24468 | | Inertia of empty vibrating screen, (kg m2) | 622443 | | Vertical position of center of mass, (m) | 0.298 | | Horizontal distance of center of mass to point A, (m) | 2.054 | | Horizontal distance of center of mass to point B, (m) | 3.896 | | Moment arm of excitation force, (m) | 1.372 | | Distance from B to feed zone, (m) | 1.065 | | Distance from A to discharge zone, (m) | 1.220 | | Distance from center of mass to upper deck, (m) | 0.020 | | Distance from center of mass to lower deck, (m) | 0.932 | | Height of lower inferior, (m) | 0.960 | | Height of upper deck, (m) | 1.875 | | Height of chute, (m) | 2.255 |
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