ORBi: Amrane Amirouche - Ship Structure Optimization Using CAD/FEM Integration

Reference : Ship Structure Optimization Using CAD/FEM Integration


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Civil engineering
	To cite this reference:	http://hdl.handle.net/2268/121060

Title :	Ship Structure Optimization Using CAD/FEM Integration
Language :	English
Author, co-author :	Amrane, Amirouche [Université de Liège - ULg > Département Argenco : Secteur TLU+C > ANAST (Systèmes de transport et constructions navales) >]
	Caprace, Jean-David [Université de Liège - ULg > Département ArGEnCo > Constructions hydrauliques et navales >]
	Rigo, Philippe [Université de Liège - ULg > Département ArGEnCo > Constructions hydrauliques et navales >]
Publication date :	11-Jun-2012
Main document title :	11th INTERNATIONAL MARINE DESIGN CONFERENCE
Publisher :	University of Strathclyde
Peer reviewed :	Yes
Audience :	International
City :	Glasgow
Country :	UK
Event name :	11th INTERNATIONAL MARINE DESIGN CONFERENCE
Event date :	11 au 14 juin 2012
Event organizer :	University of Strathclyde
Event place (city) :	Glasgow
Event country :	UK
Keywords :	[en] Ship Structures ; Optimization ; CAD ; FEM ; AVEVA Marine ; ANSYS ; ModeFrontier
Abstract :	[en] In ship structural design, scantling optimization using mathematical algorithms is not yet largely implemented in industry. Optimization with mathematical algorithms can be very helpful to find the best solution (minimum weight, minimum cost, maximum inertia,…). Typically, finite element analysis (FEA) tools are used in ship structural assessment. But, to build a FEM model from a CAD one is not easy. It needs a big amount of manual work. In the present work, an innovative optimization workflow was developed. The following steps are carried automatically without any manual intervention. First, from the 3D CAD model, an idealized CAD model is created by the idealization module to take into account the FEM needs. Then, the idealized CAD model is transferred to the FEM tool. After that, the FEM model is meshed and loaded. After FEM solving, the results (stress, displacement, volume etc.) are transferred to the optimizer. The optimizer evaluates the values of the objective function and the constraints previously defined and modify the design variables (plate thickness and the stiffener scantling) to create a new structural model. After several iterations, the optimum solution is evaluated.
Research units :	University of Strathclyde
Funders :	University of Strathclyde
Permalink :	http://hdl.handle.net/2268/121060
Other URL :	www.imdc2012.org.uk

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Open access	V3-draft-AMRANE.pdf		Publisher postprint	1.7 MB	View/Open

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