Pregled bibliografske jedinice broj: 1274876
Influence of Large Shell Openings Geometry in Ship Superstructure on Stress Concentration Reduction
Influence of Large Shell Openings Geometry in Ship Superstructure on Stress Concentration Reduction // 15th International Symposium on Practical Design of Ships and Other Floating Structures - PRADS 2022
Dubrovnik, Hrvatska, 2022. str. 1-16 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 1274876 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Influence of Large Shell Openings Geometry in Ship
Superstructure on Stress Concentration Reduction
Autori
Andrić, Jerolim ; Haraminčić, Bruno ; Tomičić, Mateja ; Prebeg, Pero
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Skup
15th International Symposium on Practical Design of Ships and Other Floating Structures - PRADS 2022
Mjesto i datum
Dubrovnik, Hrvatska, 09.10.2022. - 13.10.2022
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
: Large side superstructure openings ; Multideck ships ; Stress concentrations ; FEM
Sažetak
The ship structure of modern multi-deck ships (e.g., cruise, passenger and RoPax ships, livestock carriers, RoRo ships etc.) is characterized by large openings in a superstructure shell plating. Such openings have a great influence on primary stress distribution over the ship overall depth and longitudinal ship strength. Due to a combination of shear-bending load, high stresses are concentrated around corners of large openings, which could be decreased by choosing the proper geometry of the opening. Parametric study is carried out to investigate the influence of geometry around the corners of the openings on stress concentration reduction. Thirty six (36) partial 2D models of superstructure side shell plating has been generated using a finite element method (FEM) and the structural response of the models has been analysed. The results are presented in dimensionless form by introducing a stress reduction coefficient. The stress reduction coefficient has been defined as the ratio of the stress of a geometrically improved corner (with a certain radius) and a corner without radius (right angle). Response surface of stress reduction coefficient with respect to a size of the corner radius and size of openings has been generated. The accuracy of the proposed response surface results was finally tested on a global full ship 3D FE model of large livestock carrier with a realistic set of the design load cases.
Izvorni jezik
Engleski
Znanstvena područja
Brodogradnja
POVEZANOST RADA
Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb
