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Preconditioning the Quad Dominant Mesh Generator for Ship Structural Analysis (CROSBI ID 310245)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Grubišić, Luka ; Lacmanović, Domagoj ; Tambača, Josip Preconditioning the Quad Dominant Mesh Generator for Ship Structural Analysis // Algorithms, 15 (2022), 1; 2, 11. doi: 10.3390/a15010002

Podaci o odgovornosti

Grubišić, Luka ; Lacmanović, Domagoj ; Tambača, Josip

engleski

Preconditioning the Quad Dominant Mesh Generator for Ship Structural Analysis

This paper presents an algorithm for the fully automatic mesh generation for the finite element analysis of ships and offshore structures. The quality requirements on the mesh generator are imposed by the acceptance criteria of the classification societies as well as the need to avoid shear locking when using low degree shell elements. The meshing algorithm will be generating quadrilateral dominated meshes (consisting of quads and triangles) and the mesh quality requirements mandate that quadrilaterals with internal angles close to 90° are to be preferred. The geometry is described by a dictionary containing points, rods, surfaces, and openings. The first part of the proposed method consists of an algorithm to automatically clean the geometry. The corrected geometry is then meshed by the frontal Delaunay mesh generator as implemented in the gmsh package. We present a heuristic method to precondition the cross field of the fronatal quadrilateral mesher. In addition, the influence of the order in which the plates are meshed will be explored as a preconditioning step.

mesh generation ; finite element analysis ; shell elements

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Podaci o izdanju

15 (1)

2022.

2

11

objavljeno

1999-4893

10.3390/a15010002

Povezanost rada

Brodogradnja, Matematika

Poveznice
Indeksiranost