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The range of the optimal parameters value.
| Optimization parameters | Original parameters | Lower limit | Upper limit |
|---|---|---|---|
| k p /N/m | 1176000 | 823200 | 1528800 |
| k s /N/m | 190000 | 133000 | 247000 |
| c p /Ns/m | 13000 | 9100 | 16900 |
| c s /Ns/m | 40000 | 28000 | 52000 |
| b p /kg | — | 1 | 50000 |
| b s /kg | — | 1 | 50000 |
