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A Fuzzy Metric for Assessing the Producibility of Straightening in Early Design
Caprace, Jean-David; Aracil Fernandez, Francisco; Losseau, Nicolas et al.
2009In The 14th International Conference on Computer Applications in Shipbuilding (ICCAS)
Peer reviewed
 

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Keywords :
Fuzzy logic; Cost; Optimization; Straightening; Shipbuilding; Ship
Abstract :
[en] Since several years, the large shipyards use more and more thin plates to build up stiffened panels in order to decrease the structural weight. The major problem relating to the utilization of thin plates is the occurrence of welding distortions that have to be eliminated for esthetical and service reasons. This straightening operation involves significant costs and it seems thus important to characterize its economical impact on the global hull fabrication. This paper presents a way to minimize cost in shipbuilding industry by the implementation of a producibility fuzzy metric in order to obtain a better knowledge of the straightening process. Attention has been focused on the definition of fuzzy rules by experts but also on the optimisation of the decision surface to reduce the error compared to actual measurement points.
Disciplines :
Mechanical engineering
Civil engineering
Author, co-author :
Caprace, Jean-David ;  Université de Liège - ULiège > Département Argenco : Secteur TLU+C > ANAST (Systèmes de transport et constructions navales)
Aracil Fernandez, Francisco;  Université de Liège - ULiège > Département Argenco
Losseau, Nicolas ;  Université de Liège - ULiège > Département ArGEnCo > Constructions hydrauliques et navales
Rigo, Philippe  ;  Université de Liège - ULiège > Département ArGEnCo > Constructions hydrauliques et navales
Language :
English
Title :
A Fuzzy Metric for Assessing the Producibility of Straightening in Early Design
Alternative titles :
[fr] Mesure floue pour évaluer la productivité du redressage au début du design
Publication date :
01 September 2009
Event name :
The 14th International Conference on Computer Applications in Shipbuilding (ICCAS)
Event organizer :
The Royal Institution of Naval Architects (RINA)
Event place :
Shanghai, China
Event date :
1-3 september 2009
Audience :
International
Main work title :
The 14th International Conference on Computer Applications in Shipbuilding (ICCAS)
Edition :
The Royal Institution of Naval Architects (RINA)
Pages :
211-218
Peer reviewed :
Peer reviewed
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 08 September 2009

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