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

### From inside the book

Results 1-3 of 63

Page 346

A time dependent stiffness

motion of the floating vessel. An approximate analytical solution for the single -

degree -of-freedom (SDOF) model with time varying stiffness has previously been

...

A time dependent stiffness

**matrix**is considered, which is induced by the heavemotion of the floating vessel. An approximate analytical solution for the single -

degree -of-freedom (SDOF) model with time varying stiffness has previously been

...

Page 401

... coeff.

coeff.

for ...

... coeff.

**matrix**- vessel viscous damping coeff.**matrix**- riser potential dampingcoeff.

**matrix**- riser viscous damping coeff. ...**matrix**- vessel restoring coefficient**matrix**- riser stiffness**matrix**- cables stiffness coefficient**matrix**- mass coefficientfor ...

Page 624

When using the Newton- Raphson algorithm in the nonlinear finite element

analysis, the tangential stiffness

iteration step. In certain cases, this might either cost too much conputational effort

for ...

When using the Newton- Raphson algorithm in the nonlinear finite element

analysis, the tangential stiffness

**matrix**has to be reformed and factorized for eachiteration step. In certain cases, this might either cost too much conputational effort

for ...

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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