Abstract
In this work we present a generic methodology for implementing, within the CATIA® modelling environment, a parametric model for typical free-form ships so that each instance is represented as a tangentially-continuous (G 1-continuous) NURBS multi-patch surface. The methodology has been applied for constructing a container-ship parametric model that is able to generate robustly and efficiently valid hulls for a broad value range of the associated exposed parameters. The so-constructed parametric model is integrated with an, in-house developed, wave-resistance solver and the modeFrontier® optimizer for setting up an environment, that has been tested for optimizing the bow area of a container ship against the criterion of minimum wave resistance under the constraint of given displacement. Our solver adopts the Neumann-Kelvin formulation and combines the Boundary Element Method (BEM) with Isogeometric-Analysis (IGA) for the numerical solution of the resulting Boundary Integral Equation (BIE). It should be stressed that the IGA concept, recently introduced by Tom Hughes and his group at the University of Texas at Austin, aims to intrinsically integrate CAD with Analysis (FEM/BEM solver) by communicating the CAD model of the computation field to the solver without any approximation, e.g., panelization.
| Original language | English |
|---|---|
| Title of host publication | RINA, Royal Institution of Naval Architects - International Conference on Computer Applications in Shipbuilding 2011, Papers |
| Pages | 9-20 |
| Number of pages | 12 |
| Volume | 1 |
| Publication status | Published - 2011 |
| Externally published | Yes |
| Event | International Conference on Computer Applications in Shipbuilding 2011 - Trieste, Italy Duration: Sep 20 2011 → Sep 22 2011 |
Other
| Other | International Conference on Computer Applications in Shipbuilding 2011 |
|---|---|
| Country | Italy |
| City | Trieste |
| Period | 9/20/11 → 9/22/11 |
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ASJC Scopus subject areas
- Computer Science Applications
Cite this
A CATIA® ship-parametric model for isogeometric hull optimization with respect to wave resistance. / Ginnis, A. I.; Feurer, C.; Belibassakis, K. A.; Kaklis, P. D.; Kostas, K. V.; Gerostathis, Th P.; Politis, C. G.
RINA, Royal Institution of Naval Architects - International Conference on Computer Applications in Shipbuilding 2011, Papers. Vol. 1 2011. p. 9-20.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - A CATIA® ship-parametric model for isogeometric hull optimization with respect to wave resistance
AU - Ginnis, A. I.
AU - Feurer, C.
AU - Belibassakis, K. A.
AU - Kaklis, P. D.
AU - Kostas, K. V.
AU - Gerostathis, Th P.
AU - Politis, C. G.
PY - 2011
Y1 - 2011
N2 - In this work we present a generic methodology for implementing, within the CATIA® modelling environment, a parametric model for typical free-form ships so that each instance is represented as a tangentially-continuous (G 1-continuous) NURBS multi-patch surface. The methodology has been applied for constructing a container-ship parametric model that is able to generate robustly and efficiently valid hulls for a broad value range of the associated exposed parameters. The so-constructed parametric model is integrated with an, in-house developed, wave-resistance solver and the modeFrontier® optimizer for setting up an environment, that has been tested for optimizing the bow area of a container ship against the criterion of minimum wave resistance under the constraint of given displacement. Our solver adopts the Neumann-Kelvin formulation and combines the Boundary Element Method (BEM) with Isogeometric-Analysis (IGA) for the numerical solution of the resulting Boundary Integral Equation (BIE). It should be stressed that the IGA concept, recently introduced by Tom Hughes and his group at the University of Texas at Austin, aims to intrinsically integrate CAD with Analysis (FEM/BEM solver) by communicating the CAD model of the computation field to the solver without any approximation, e.g., panelization.
AB - In this work we present a generic methodology for implementing, within the CATIA® modelling environment, a parametric model for typical free-form ships so that each instance is represented as a tangentially-continuous (G 1-continuous) NURBS multi-patch surface. The methodology has been applied for constructing a container-ship parametric model that is able to generate robustly and efficiently valid hulls for a broad value range of the associated exposed parameters. The so-constructed parametric model is integrated with an, in-house developed, wave-resistance solver and the modeFrontier® optimizer for setting up an environment, that has been tested for optimizing the bow area of a container ship against the criterion of minimum wave resistance under the constraint of given displacement. Our solver adopts the Neumann-Kelvin formulation and combines the Boundary Element Method (BEM) with Isogeometric-Analysis (IGA) for the numerical solution of the resulting Boundary Integral Equation (BIE). It should be stressed that the IGA concept, recently introduced by Tom Hughes and his group at the University of Texas at Austin, aims to intrinsically integrate CAD with Analysis (FEM/BEM solver) by communicating the CAD model of the computation field to the solver without any approximation, e.g., panelization.
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M3 - Conference contribution
SN - 9781905040872
VL - 1
SP - 9
EP - 20
BT - RINA, Royal Institution of Naval Architects - International Conference on Computer Applications in Shipbuilding 2011, Papers
ER -