Ship Poids

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Ship Poids

Emplacement du menu
Weights → Create a new ship weight
Ateliers
Ship
Raccourci par défaut
Aucun
Introduit dans la version
-
Voir aussi
Aucun

Description

Ajoute un poids à l'instance du bateau.

Jusqu'à ce stade, tous les outils de Ship workbench sont basés sur une instance de bateau (voir Créer une coque), qui ne contient que des informations sur la forme du bateau. Suivant le système d'introduction progressive des données, l'utilisateur peut à ce stade définir des conditions de charge, ce qui implique de créer des poids avec cet outil, de créer des réservoirs (voir Création de réservoirs) et de les assembler dans des conditions de charge (voir Conditions de charge). Avec ces informations, le centre de gravité du bateau peut être défini, permettant ainsi d'autres calculs.

Utilisation

Pour créer un poids, sélectionnez la géométrie du poids (voir ci-dessous) et invoquez Weights → Create a new ship weight.

Le panneau des tâches s'affiche, où vous devez sélectionner l'instance du bateau (voir Créer une coque) dans laquelle le poids doit être ajouté, ainsi que la densité/masse.

Lorsque vous appuyez sur le bouton Accept, une nouvelle instance de réservoir est créée dans l'instance de bateau choisie.

Niveaux d'abstraction

As already discussed, the weights can be defined on top of different kind of geometries, allowing different levels of abstraction. If several of those entities are simultaneously selected, the lower possible level of abstraction is selected.

Solid/volumetric weights

This is the lower level of abstraction, where the solid shape of the weight is provided, requiring a detailed knowledge of the element. In case solids are found in the selected geometry, this is the abstraction type that will be applied, discarding any other type of geometry.

Solid/volumetric weights are featured by its material density (in kg/m3, or any other compatible unit).

Surface/area weights

The next level of abstraction are the surface-based weights. This level of abstraction can be considered for plates, or in general for any surface element with a small width.

Schematic view of a thin plate

In case no solids can be found in the selected geometry but surfaces, this is the abstraction type that will be applied, discarding the lines and vertices.

Surface/area weights are featured by its area density (in kg/m2, or any other compatible unit), i.e. the material density multiplied by the width of the element.

Linear weights

The next level of abstraction are the line-based weights. This level of abstraction can be considered for beams, or in general for any element with small cross-sectional area compared with the longitudinal dimension.

Schematic view of a thin beam

In case neither solids nor surfaces can be found in the selected geometry, but edges/lines are indeed present, this is the abstraction type that will be applied. The vertices are indeed discarded.

Linear weights are featured by its linear density (in kg/m, or any other compatible unit), i.e. the material density multiplied by the cross-sectional area.

Punctual weights

This is the highest level of abstraction, in which the whole weight is represented by a single point (if several points are provided the final application point will be averaged). In case just vertices can be found in the selected geometry, this is the abstraction type that will be applied.

Punctual weights are featured by its mass (in kg, or any other compatible unit).

Tutorials


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