Research Article
Identification of Random Dynamic Force Using an Improved Maximum Entropy Regularization Combined with a Novel Conjugate Gradient
Table 1
The material parameters.
| | Materials | Compressive strength (MPa) | Elastic modulus (MPa) | Poisson ratio | Density (kg/m3) |
| | Coal-seam | 2.68 | 322.09 | 0.25 | 1607.98 | | Pick | — | 600 | 0.25 | 7800 |
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