| Control variables | Lightly loaded condition | Normal loaded condition | Heavily loaded condition | Control variables | Lightly loaded condition | Normal loaded condition | Heavily loaded condition |
| V1 | 1.08623 | 1.1 | 1.1 | T7 | 1.04543 | 0.95 | 0.989527 |
| V2 | 1.09163 | 1.1 | 1.1 | T8 | 0.988768 | 0.95 | 0.95 |
| V3 | 1.09716 | 1.1 | 1.1 | T9 | 0.95 | 1.05 | 0.950728 |
| V6 | 1.1 | 1.1 | 1.1 | T10 | 1.02535 | 0.95 | 0.95 |
| V8 | 1.1 | 1.1 | 1.1 | T11 | 0.968509 | 0.96518 | 0.95 |
| V9 | 1.07875 | 1.1 | 1.1 | T12 | 0.981064 | 0.95 | 1.01125 |
| V12 | 1.07661 | 1.1 | 1.1 | T13 | 0.964782 | 1.05 | 0.995869 |
| QC18 | −2.86067 | 20 | 20 | T14 | 1.00633 | 0.95 | 0.990177 |
| QC25 | −0.455466 | 20 | 20 | T15 | 0.989047 | 0.95 | 1.05 |
| Qc53 | 0.204621 | 13.1967 | 20 | Qg1 | 2.79599 | 0 | 3.61023 |
| T1 | 1.04844 | 0.95 | 0.95 | Qg2 | −17.3942 | −40 | 50 |
| T2 | 1.04991 | 0.95016 | 0.95 | Qg3 | 50 | −40 | 15.4129 |
| T3 | 0.96976 | 0.95 | 0.95 | Qg6 | 20.2413 | −18.1918 | −28.3228 |
| T4 | 0.995547 | 1.05 | 0.955142 | Qg8 | 34.9479 | −10 | 20.2949 |
| T5 | 0.973679 | 0.95 | 1.00837 | Qg9 | 14.3681 | 24 | −6 |
| T6 | 0.95073 | 0.95 | 0.95 | Qg12 | 6.1866 | 24 | −6 |