## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1990 - Offshore structures |

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Page 23

Directional

Residual spectrum for GH seas. Examination of numerically synthesized data can

elucidate the relative importance of various sources of inaccuracy contributing to

the ...

Directional

**spectra**for GH seas, a) target, b) measured. 151 ' (5! Figure 15.Residual spectrum for GH seas. Examination of numerically synthesized data can

elucidate the relative importance of various sources of inaccuracy contributing to

the ...

Page 66

Using these three methods , the predicted wave force

with the measured wave force

COEFFICIENTS Least-Square Method By rewriting Equation 16 as: SPp(w) - [

RAOI]2 S„(w) ...

Using these three methods , the predicted wave force

**spectra**were comparedwith the measured wave force

**spectra**. ANALYSIS OF HYDRODYNAMICCOEFFICIENTS Least-Square Method By rewriting Equation 16 as: SPp(w) - [

RAOI]2 S„(w) ...

Page 37

Table 1 : Stress

PROPOSED USA LRFD FIXED OFFSHORE PLATFORM DESIGN PRACTICE TO

. with a - 0.926 - 0.033m and b - 1.587m - 2.323. A typical value of X for offshore ...

Table 1 : Stress

**Spectra**for Different Sea -States, Wirsching (1980) ADAPTINGPROPOSED USA LRFD FIXED OFFSHORE PLATFORM DESIGN PRACTICE TO

. with a - 0.926 - 0.033m and b - 1.587m - 2.323. A typical value of X for offshore ...

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added mass amplitude analysis array calculated circular cylinder component crest damping coefficient direction displacement distribution domain drag coefficient drag force drillship dynamic effect element equation estimated flexible riser floating flow fluid force coefficients forces acting foroe forward speed free surface heave horizontal hydrodynamic hydrodynamic forces incident wave integral irregular Kc number lift force linear load low-frequency low-frequency oscillation matrix maximum measured method mooring line motion nonlinear obtained Offshore Mechanics Offshore Structures Offshore Technology Conference oscillation oscillatory parameters pile plate prediction pressure problem ratio Rayleigh distribution regular waves response Reynolds number Sarpkaya seastates second-order semisubmersible ship shown in Figure simulation solution spectra spectrum surge tension transfer function transverse vector velocity potential vertical viscous vortex vortex shedding vortices water depth wave amplitude wave excitation wave force wave frequency wave height wave number wave period wave power