Research Article
Optimal Evaluation of the Rheological Parameters for STF Dampers in Semi-Rigid Joints of Steel Structures Using Response Surface Method
Table 1
Process parameters and working range.
| Factors | Level | Low level | High level |
| Load frequency (Hz) | 1.75 | 0.8800 | 2.00 | % of STF with oil | 42.72 | 32.50 | 49.20 | Initial viscosity (Pa.s) | 39.56 | 32.00 | 50.00 | Stiffener thickness (mm) | 8.54 | 8.00 | 9.50 | Applied force (kN) | 96.77 | 60.00 | 120.00 |
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