Research Article
An Analytical Model for Predicting Ground Pressure under a Rigid-Flexible Tracked Vehicle on Soft Ground
Table 1
Input data for the analytical model.
| | Parameters | Values | Units |
| | Soil cohesive modulus (kc) | 10.21 | kN/mmn+1 | | Soil frictional modulus (kψ) | 300.52 | kN/mmn+2 | | Sinkage exponent (n) | 0.53 | — | | Soil cohesion (c) | 2.10 × 10−3 | Pa | | Soil internal friction angle (ψ) | 10 | ° | | Unit weight of soil (γs) | 7.8 × 104 | kN/m3 | | Weight of the track vehicle (W) | 49 | kN | | Torque acting on the sprocket (M) | 7.8 | kN·m | | Approach angle of the track system (α0) | 11 | ° | | Departure angle of the track system (β) | 9 | ° | | Radius of the roadwheels (r1, r2, r3) | 298 | mm | | Radius of the sprocket (rS) | 220 | mm | | The grouser width (b) | 440 | mm | | Length of the grouser (a) | 74 | mm | | Height of the grouser (d) | 55 | mm | | Length of the flexible track (l) | 90 | mm | | Flexible track width (h) | 600 | mm | | Number of roadwheel (N) | 3 | — | | Number of rigid grouser (R) | 15 | — | | Number of flexible track (Q) | 14 | — |
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