Ship-Hull Shape Optimization with a T-spline based BEM-Isogeometric Solver
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Date
2014
Authors
Kostas, Konstantinos
Ginnis, A.I.
Politis, C.G.
Kaklis, P.D.
Journal Title
Journal ISSN
Volume Title
Publisher
Computer Methods in Applied Mechanics and Engineering
Abstract
In this work, we present a ship-hull optimization process combining a T-spline based parametric ship-hull model and an Isogeometric Analysis (IGA) hydrodynamic solver for the calculation of ship wave resistance. The surface representation of the ship-hull instances comprise one cubic T-spline with extraordinary points, ensuring C2C2 continuity everywhere except for the vicinity of extraordinary points where G1G1 continuity is achieved. The employed solver for ship wave resistance is based on the Neumann–Kelvin formulation of the problem, where the resulting Boundary Integral Equation is numerically solved using a higher order collocated Boundary Element Method which adopts the IGA concept and the T-spline representation for the ship-hull surface. The hydrodynamic solver along with the ship parametric model are subsequently integrated within an appropriate optimization environment for local and global ship-hull optimizations against the criterion of minimum resistance.
Description
Keywords
T-spline, Wave-resistance, Shape-optimization, Ship-hull
Citation
K.V. Kostasa, A.I. Ginnisb, C.G. Politisa, P.D. Kaklis; 2014; Ship-Hull Shape Optimization with a T-spline based BEM-Isogeometric Solver; Computer Methods in Applied Mechanics and Engineering; http://nur.nu.edu.kz/handle/123456789/2003