Naslov
UNCERTAINTY IN HULL GIRDER FATIGUE ASSESSMENT OF CONTAINERSHIP

Autori
Varda, Nenad ; Čižmek, Zrinka ; Ćorak, Maro ; Parunov, Joško

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

Izvornik
XX. SIMPOZIJ Teorija i prakda brodogradnje (SORTA 2012) : Zbornik radova / - Zagreb : FSB, Brodarski institut, 2012

ISBN
978-953-7738-20-4

Skup
Simpozij Teorija i prakda brodogradnje (20 ; 2012)

Mjesto i datum
Zagreb, Hrvatska, 27.09.2012. - 29.09.2012

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
containership; wave loads; fatigue

Sažetak
The aim of the paper is to investigate differences in fatigue assessment of 9200 TEU containership caused by uncertainties in prediction of global wave loads. For that purpose, long-term predictions of linear vertical wave bending moment is calculated using different seakeeping tools and assuming different shipping routes. Thus, hydrodynamic analysis is performed using seakeeping software WAVESHIP implementing strip theory and 3D panel code HYDROSTAR. Long-term prediction is performed for 2 different wave environments: shipping route in North Atlantic (without forward speed) and World Wide trading route (forward speed 60 % of nominal speed). The fatigue life of ship hull girder is assessed according to Common Structural Rules for Oil Tankers. Resulting fatigue lives obtained by different seakeeping tools and for different wave environments are compared. Finally, influence of wave-induced ship vibration on fatigue life is assessed.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja

POVEZANOST RADA