Research Article
Mitigation of Flow-Induced Vibration of Steel Catenary Risers with Pounding Tuned Mass Damper
Table 3
: Vibration control performance of the PTMD.
| | OC | SCR | Displacement | Acceleration | | Response (m) | Reduction ratio (%) | Response (m/s2) | Reduction ratio (%) |
| | OC 1 | No control | 6.10 | — | 7.43 | — | | PTMD | 3.14 | 48.52 | 3.64 | 51.01 |
| | OC 2 | No control | 1.92 | — | 7.47 | — | | PTMD | 0.68 | 73.81 | 3.85 | 48.46 |
| | OC 3 | No control | 1.92 | — | 9.03 | — | | PTMD | 1.09 | 43.22 | 5.88 | 34.88 |
| | OC 4 | No control | 8.4 | — | 13.27 | — | | PTMD | 3.11 | 62.98 | 6.37 | 52.00 |
| | OC 5 | No control | 0.29 | — | 2.91 | — | | PTMD | 0.174 | 40.00 | 2.27 | 22.07 |
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