Naslov
On the linear stiffness of tension leg platforms

Autori
Senjanović, Ivo ; Hadžić, Neven ; Tomić, Marko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Sustainable Maritime Transportation and Exploitation of Sea Resources / Enrico, Rizzuto ; Carlos Guedes Soares - London : Delhi : Taylor & Francis, 2011, 1081-1088

ISBN
978-0-415-62081-9

Skup
International Maritime Association of the Mediterranean

Mjesto i datum
Genova, Italija, 13.09.2011. - 16.09.2011

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
tension leg platform; linear stiffness; conventional stiffness; restoring stiffness; geometric stiffness

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja

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