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On the linear stiffness of tension leg platforms (CROSBI ID 575566)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Senjanović, Ivo ; Hadžić, Neven ; Tomić, Marko On the linear stiffness of tension leg platforms // Sustainable Maritime Transportation and Exploitation of Sea Resources / Enrico, Rizzuto ; Carlos Guedes Soares (ur.). London : Delhi: Taylor & Francis, 2011. str. 1081-1088

Podaci o odgovornosti

Senjanović, Ivo ; Hadžić, Neven ; Tomić, Marko

engleski

On the linear stiffness of tension leg platforms

The tension leg platform (TLP) is a type of compliant offshore structures generally used for deep water oil exploration. The platforms are moored by very flexible tendons so that surge amplitude can achieve a large value. The platform hull is considered as a rigid body with six DOF. The total restoring stiffness plays a very important role in the TLP dynamic behavior. In present literature inadequate formulations of the stiffness have been used. The problem is to define realistic centre of rotations. The purpose of this paper is to present a consistent formulation of the stiffness matrix, derived from the general solution established for hydroelastic analysis of ship structures, as a specific case. In reality 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; linear stiffness; conventional stiffness; restoring stiffness; geometric stiffness

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Podaci o prilogu

1081-1088.

2011.

objavljeno

Podaci o matičnoj publikaciji

Sustainable Maritime Transportation and Exploitation of Sea Resources

Enrico, Rizzuto ; Carlos Guedes Soares

London : Delhi: Taylor & Francis

978-0-415-62081-9

Podaci o skupu

International Maritime Association of the Mediterranean

predavanje

13.09.2011-16.09.2011

Genova, Italija

Povezanost rada

Brodogradnja