Strukturna analiza broda za prijevoz žive stoke

Andrić, Jerolim and Žanić, Vedran and Sponza, Dino and Dundara, Djani and Radolović, Vito and Grgić, Mate and Pirić, Karlo and Stipčević, Marko (2010) Strukturna analiza broda za prijevoz žive stoke. = Structural Analysis of Livestock Carrier. In: XIX. simpozij Teorija i praksa brodogradnje, in memoriam prof. Leopold Sorta = The 19th symposium Theory and practice shipbuilding, in memoriam prof. Leopold Sorta, 07-09.10.2010., Split, Lumbarda; Croatia.

[img]
Preview
Text
STRUCTURAL ANALYSIS OF LIVESTOCK CARRIER.pdf - Published Version Jezik dokumenta:English

Download (2MB) | Preview
Official URL: http://marjan.fesb.hr/sorta2010/

Abstract (Croatian)

Svrha rada je prikazati najvažnije rezultate strukturne analize broda za prijevoz žive stoke projektiranog u brodogradilištu ULJANIK (Gradnja 486-487). Prikazani su glavni aspekti koje je potrebno razmotriti prilikom racionalnog projektiranja konstrukcije ovakvih tipova broda. Struktura broda odlikuje se velikim otvorima u boku iznad najgornje palube trupa, te nepostojanjem poprečnih pregrada u strukturi nadgrađa (između paluba 6 i 10). Cijevni ventilacijski kanali su integralni, nosivi dio strukture. To zahtjeva pažljivo razmatranje dva globalna strukturna problema: (1) problem uzdužne čvrstoće uz sudjelovanje paluba nadgrađa; (2) problem poprečne čvrstoće i nosivost poprečnih elemenata. Proračun čvrstoće je proveden je prema Pravilima klasifikacijskog društva RINA koristeći postupak modeliranja cijelog broda 'grubom' MKE mrežom. Sudjelovanje paluba nadgrađa u uzdužnoj čvrstoći izraženo je preko stupnja efikasnosti nadgrađa, te su analizirani dijagrami distribucije primarnih naprezanja po visini trupa za nekoliko karakterističnih presjeka, za početni model i predloženu varijantu. Identificirane su kritične točke u kojima se pojavljuju koncentracije naprezanja za koje je potrebno provesti proračun 'finom' MKE mrežom u dogovoru s klasifikacijskim društvom. Racionalnim dimenzioniranjem ostvarene su značajne uštede u težini nadgrađa i gornje palube trupa.

Abstract

The main results of structural analysis of livestock carrier designed in ULJANIK shipyard (Yard no.486-487) have been presented. The most important aspects in a rational structural design of this kind of ships have been underline. The ship structure is characterized with large openings in superstructure side shell and with the absence of transverse bulkheads in superstructure part (zone above Deck 6). Ventilations tubes (channels) are integral and the load carrying part of the structure. Two main structural problems have been evaluated: (1) longitudinal strength, with the appropriate level of superstructure participation in hull girder bending ; (2) transverse/racking strength, where the capability of transverse structure has been evaluated. The strength calculation has been carried out according to RINA Rules using FE coarse mesh approach. Superstructure participation in hull girder longitudinal bending has been identified and longitudinal stress distribution over ship height has been given for the prototype and the proposed model. Critical locations (where a fine mesh FE analysis is needed) with the high stress concentrations have been indentified. Gain in structural weight has been achieved in the superstructure due to the rational redesign procedure.

Item Type: Conference or Workshop Item (Lecture)
Uncontrolled Keywords: brod za prijevoz žive stoke; strukturna analiza; MKE; uzdužna i poprečna čvrstoća
Keywords (Croatian): livestock carrier; structural design; full ship FE model; longitudinal and transverse strength
Subjects: TECHNICAL SCIENCE > Shipbuilding
Divisions: 600 Department of Naval Engineering and Marine Technology > 620 Chair of Marine Structures Design
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 19 May 2015 09:01
Last Modified: 13 Oct 2017 11:55
URI: http://repozitorij.fsb.hr/id/eprint/4185

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

Nema podataka za dohvacanje citata