Research Article
VIV Fracture Investigation into 3D Marine Riser with a Circumferential Outside Surface Crack
Table 1
Parameters of the riser model in experiment.
| | Parameter | Value | Parameter | Value |
| | Outside diameter (m) | 0.030 | Mass ratio | 2.5 | | Depth of water (m) | 7.9 | Axial stiffness (N) | 1.45E7 | | Inside diameter (m) | 0.027 | Structural damping ratio | 0.3 | | Young’s modulus (Pa) | 1.08E11 | Top tension (N) | 2943 | | Length/diameter ratio | 263 | Mass per unit length (kg/m) | 1.768 | | Bending stiffness (N/m2) | 1476.763 | Natural frequency (Hz) | 2.27 |
|
|
