## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 2American Society of Mechanical Engineers, 2001 - Arctic regions |

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Page 388

X - and Y - components of upper ( left ) and lower ( right ) riser

of vessel offset for a 3D current profile with direction of velocity vector rotated by

180 degrees from top to bottom , Chen ( 2001 ) Figure 4 . Dynamic response of ...

X - and Y - components of upper ( left ) and lower ( right ) riser

**angle**as functionsof vessel offset for a 3D current profile with direction of velocity vector rotated by

180 degrees from top to bottom , Chen ( 2001 ) Figure 4 . Dynamic response of ...

Page 389

Figure 4 . Dynamic response of riser top

Response

dynamic / static ) to the right , Chen ( 2001 )

Figure 4 . Dynamic response of riser top

**angle**to low - frequency vessel motion .Response

**angle**in degrees ( left ) and dynamic amplification factor ( maxdynamic / static ) to the right , Chen ( 2001 )

**Angle**DAF for Lower**angle**Figure 5 .Page 390

Current velocity ( sec ) Bottom

3000 3500 4000 Figure 7 . Reliability indices as functions of time for fixed

setpoint above well - head 0 500 1000 1500 2000 2500 Ime ( sec ) 3000 3500

4000 ...

Current velocity ( sec ) Bottom

**angle**to 500 1000 1500 2000 time ( sec ) 25003000 3500 4000 Figure 7 . Reliability indices as functions of time for fixed

setpoint above well - head 0 500 1000 1500 2000 2500 Ime ( sec ) 3000 3500

4000 ...

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