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...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Algorithms |
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| Online Access: | https://www.mdpi.com/1999-4893/15/1/2 |
| _version_ | 1797496518197903360 |
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| author | Luka Grubišić Domagoj Lacmanović Josip Tambača |
| author_facet | Luka Grubišić Domagoj Lacmanović Josip Tambača |
| author_sort | Luka Grubišić |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T03:04:49Z |
| format | Article |
| id | doaj.art-86d5cddd142b4ab185b1a17187fec882 |
| institution | Directory Open Access Journal |
| issn | 1999-4893 |
| language | English |
| last_indexed | 2024-03-10T03:04:49Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Algorithms |
| spelling | doaj.art-86d5cddd142b4ab185b1a17187fec8822023-11-23T12:40:25ZengMDPI AGAlgorithms1999-48932021-12-01151210.3390/a15010002Preconditioning the Quad Dominant Mesh Generator for Ship Structural AnalysisLuka Grubišić0Domagoj Lacmanović1Josip Tambača2Faculty of Science, University of Zagreb, 10000 Zagreb, CroatiaFaculty of Science, University of Zagreb, 10000 Zagreb, CroatiaFaculty of Science, University of Zagreb, 10000 Zagreb, CroatiaThis 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.https://www.mdpi.com/1999-4893/15/1/2mesh generationfinite element analysisshell elements |
| spellingShingle | Luka Grubišić Domagoj Lacmanović Josip Tambača Preconditioning the Quad Dominant Mesh Generator for Ship Structural Analysis Algorithms mesh generation finite element analysis shell elements |
| title | Preconditioning the Quad Dominant Mesh Generator for Ship Structural Analysis |
| title_full | Preconditioning the Quad Dominant Mesh Generator for Ship Structural Analysis |
| title_fullStr | Preconditioning the Quad Dominant Mesh Generator for Ship Structural Analysis |
| title_full_unstemmed | Preconditioning the Quad Dominant Mesh Generator for Ship Structural Analysis |
| title_short | Preconditioning the Quad Dominant Mesh Generator for Ship Structural Analysis |
| title_sort | preconditioning the quad dominant mesh generator for ship structural analysis |
| topic | mesh generation finite element analysis shell elements |
| url | https://www.mdpi.com/1999-4893/15/1/2 |
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