FEM ConstraintPressure/ru: Difference between revisions

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#* Press the {{Button|[[Image:FEM_ConstraintPressure.svg|16px]] [[FEM_ConstraintPressure|Pressure load]]}} button.
#* Press the {{Button|[[Image:FEM_ConstraintPressure.svg|16px]] [[FEM_ConstraintPressure|Pressure load]]}} button.
#* Select the {{MenuCommand|Model → Mechanical boundary conditions and loads → [[Image:FEM_ConstraintPressure.svg|16px]] Pressure load}} option from the menu.
#* Select the {{MenuCommand|Model → Mechanical boundary conditions and loads → [[Image:FEM_ConstraintPressure.svg|16px]] Pressure load}} option from the menu.
# Click on {{Button|Add reference}} and select face in the [[3D_view|3D view]].
# Click on {{Button|Add}} and select face in the [[3D_view|3D view]].
# Edit appropriate window to specify pressure load in MPa.
# Edit appropriate window to specify pressure load in MPa.
# Tick box to reverse direction if necessary.
# Tick box to reverse direction if necessary.
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* Distribution of the pressure on a face is always uniform and always perpendicular to the face.
* Distribution of the pressure on a face is always uniform and always perpendicular to the face.


* {{VersionMinus|0.21}}: Pressure load can be applied to shells but only when [[FEM_MeshGmshFromShape|Gmsh]] is used for meshing and group meshing is set to true. It is hardcoded as true so the user doesn't have to worry about that. However, due to a bug, pressure load may require remeshing to work on shells.
* Pressure on shells: https://github.com/FreeCAD/FreeCAD/issues/5699
* This feature uses the [https://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node190.html *DLOAD card in CalculiX].





Latest revision as of 10:08, 2 March 2024

Other languages:

FEM ConstraintPressure

Системное название
FEM ConstraintPressure
Расположение в меню
Model → Mechanical Constraints → Constraint pressure
Верстаки
FEM
Быстрые клавиши
Нет
Представлено в версии
-
См. также
FEM Constraint force

Описание

Applies a pressure load to a face.

Применение

  1. There are several ways to invoke the command:
    • Press the Pressure load button.
    • Select the Model → Mechanical boundary conditions and loads → Pressure load option from the menu.
  2. Click on Add and select face in the 3D view.
  3. Edit appropriate window to specify pressure load in MPa.
  4. Tick box to reverse direction if necessary.

Примечания

  • Distribution of the pressure on a face is always uniform and always perpendicular to the face.
  • version 0.21 and below: Pressure load can be applied to shells but only when Gmsh is used for meshing and group meshing is set to true. It is hardcoded as true so the user doesn't have to worry about that. However, due to a bug, pressure load may require remeshing to work on shells.
  • This feature uses the *DLOAD card in CalculiX.