Stiffness of tension leg platforms (CROSBI ID 585465)
Prilog sa skupa u zborniku | izvorni znanstveni rad | domaća recenzija
Podaci o odgovornosti
Senjanović, Ivo ; Hadžić, Neven ; Tomić, Marko ; Vladimir, Nikola
engleski
Stiffness of tension leg platforms
The tension leg platform (TLP) is a type of compliant offshore structures generally used for deep water oil exploration. It is moored by very flexible tendons so that surge amplitude can achieve large value. The platform hull is considered as a rigid body with six d.o.f. The total restoring stiffness plays very important role in the TLP dynamic behavior. Although there are several stiffness formulations available in the present literature, none of them is completely adequate. The issue is to define realistic centre of rotations. The consistent formulation of stiffness matrix is presented in this paper. It is derived from the general solution established for hydroelastic analysis of ship structures, as a specific case. Actually, the total TLP stiffness in dynamic analysis consists of hydrostatic hull stiffness (pressure and gravity), and conventional and geometric tendon stiffness. The new stiffness is compared to the known ones, and discrepancies are analyzed and discussed.
Tension leg platform; Restoring stiffness; Geometric stiffness
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Podaci o prilogu
94-107.
2012.
objavljeno
Podaci o matičnoj publikaciji
Zbornik radova IV Savjetovanja o morskoj tehnologiji in memoriam akademiku Zlatku Winkleru
Rožanić, Igor
Rijeka: Hrvatska akademija znanosti i umjetnosti (HAZU)
1848-3976
Podaci o skupu
Nepoznat skup
predavanje
29.02.1904-29.02.2096