Andrić, Jerolim and Grgić, Mate and Žanić, Vedran (2010) Structural Optimization of Corrugated Transverse Bulkheads Made of Stainless Steel. = Structural Optimization of Corrugated Transverse Bulkheads Made of Stainless Steel. Brodogradnja : časopis brodogradnje i brodograđevne industrije, 61 (1). pp. 18-27. ISSN 0007-215X. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q4 (2010). Točan broj autora: 3.
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Abstract (Croatian)
Opisuje se strukturna optimizacija s ciljem minimiziranja mase poprečne pregrade tankera za prijevoz kemikalija izrađene od nehrđajućeg duplex čelika. Studija predstavljena ovim radom dio je EU FP6 projekta IMPROVE i predstavlja pod-zadatak u sklopu višefazne strukturne optimizacije čiji je cilj bio razvoj inovativnog projekta tankera za prijevoz kemikalija. Zbog vrlo visoke cijene nehrđajućeg čelika (5000÷ 6000 €/t) i male uštede materijala mogu rezultirati znatnom uštedom u cijeni. U cilju postizanja kompetitivnog projekta razvijen je 3D parcijalni MKE model kemijskog tankera koji je postao osnova za strukturnu optimizaciju i donošenje odluka. Razmotrena su dva tipa naboranih pregrada: 1) s horizontalnim i 2) s vertikalnim naborima. Oba modela su analizirana, optimizirana, te je proveden odabir najboljeg. Konačno rješenje koje zadovoljava sva strukturna ograničenja ima oko 7 posto manju masu od početnog. Može se očekivati ukupna ušteda (za pet poprečnih pregrada od nehrđajućeg čelika) od 25 tona što rezultira uštedom od oko 150 000 €.
Abstract
The article describes structural optimization applied to the minimum weight design of corrugated transverse bulkheads made of the duplex stainless steel. The study presented in this paper was carried out within the EU FP6 project IMPROVE as a sub-task of multi-level structural optimization that was performed with the aim of development of a new innovative design of chemical tanker. This task can result in large benefi ts, because the unit price of duplex stainless steel is very high (5000 ÷ 6000 €/tons), and even the small savings of material can result in signifi cant cost savings. Corrugated transverse bulkhead structure of chemical tanker (CT) was developed, analyzed and optimized using partial 3D FEM model, with the objective to achieve improved and competitive design. Two types of corrugations: (1) horizontal-HC and (2) vertical-VC, were investigated, optimized and compared to enable rational selection of the preferred design. Final solutions, satisfying all structural constraints, resulted in 7% savings in structural mass. The total savings (fi ve duplex-steel made transverse bulkheads) of about 25 t can be expected with the cost benefi t of up to € 150 000.
| Item Type: | Article (["eprint_fieldopt_article_type_article" not defined]) |
|---|---|
| Uncontrolled Keywords: | strukturna optimizacija, naborane pregrade, MKE, tanker za prijevoz kemikalija |
| Keywords (Croatian): | structural optimization, corrugated bulkheads, FEM, chemical tanker |
| Subjects: | TECHNICAL SCIENCE > Shipbuilding TECHNICAL SCIENCE > Mechanical Engineering |
| Divisions: | 600 Department of Naval Engineering and Marine Technology > 620 Chair of Marine Structures Design |
| Indexed in Web of Science: | Yes |
| Indexed in Current Contents: | No |
| Citations JCR: | 2 (13.10.2017.) |
| Quartiles: | Q4 (2010) |
| Citations SCOPUS: | 3 (13.10.2017.) |
| Date Deposited: | 05 Dec 2014 09:51 |
| Last Modified: | 13 Oct 2017 12:53 |
| URI: | http://repozitorij.fsb.hr/id/eprint/3114 |
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