This paper firstly sums up some of the views on structural redundancy with particular emphasis on ship and marine structures. Next, it places the engineering decision process in the event space and, consequently, applies the representation of operational modes by systems of events. Furthermore, the paper takes some of the relations from the entropy concept in information theory. The entropy concept in probability theory is employed in the paper to redefine the structural redundancy in terms of conditional entropy of operational modes. The redundancy modeling is presented by systems of operational modes in which some of the transitive events may lead to new operational states. Finally, a ship substructure example of a stiffened panel with a girder is elaborated. The conclusion supports the thesis that the efficient structural redundancy can be comprehended as the most uniform distribution of the operational modes probabilities. Moreover, the efficient structural redundancy can be maximized.
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ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering
June 15–20, 2008
Estoril, Portugal
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4819-7
PROCEEDINGS PAPER
On the Assessment of Redundancy of Ship Structural Components
Branko Blagojevic´,
Branko Blagojevic´
University of Split, Split, Croatia
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Kalman Zˇiha
Kalman Zˇiha
University of Zagreb, Zagreb, Croatia
Search for other works by this author on:
Branko Blagojevic´
University of Split, Split, Croatia
Kalman Zˇiha
University of Zagreb, Zagreb, Croatia
Paper No:
OMAE2008-57730, pp. 673-680; 8 pages
Published Online:
July 27, 2009
Citation
Blagojevic´, B, & Zˇiha, K. "On the Assessment of Redundancy of Ship Structural Components." Proceedings of the ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. Volume 2: Structures, Safety and Reliability. Estoril, Portugal. June 15–20, 2008. pp. 673-680. ASME. https://doi.org/10.1115/OMAE2008-57730
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