FEM Module/ru

Введение
Верстак МКЭ предоставляет современный набор инструментов для анализа Методом Конечных Элементов в FreeCAD. В основном это значит объединение в одном GUI всех инструментов для выполнения анализа Методом Конечных Элементов.



Workflow
Шаги которые необходимо сделать чтобы произвести расчет МКЭ в GUI верстака FEM FreeCAD:
 * Препроцессор
 * Моделирование геометрии, здесь FreeCAD уже является вполне развитым приложением.
 * Создать Расчет:
 * Создать Сетку МКЭ из геометрической модели.
 * Добавить Условия, такие как нагрузки и фиксаторы к расчетной модели.
 * Добавить в расчетную модель Материал
 * Решение уравнений
 * Решение системы уравнений из FreeCAD GUI.
 * Постпроцессор
 * Посмотреть в FreeCAD GUI Результаты.

В версиях 0.15 и 0,16 FreeCAD модуль FEM может использовать платформы Windows, Mac OSX и Linux. Поскольку верстак FEM использует внешние программы, многие ручные настройки, требуемые для того, чтобы верстак FEM стал готов к использованию, зависит от используемой Вами операционной системы. Смотрите FEM Install.

Menu: Model

 * [[Image:Fem-analysis.svg|32px]] Analysis container: Creates a new container for a mechanical analysis. If a solid is selected in the tree view before clicking on it, the meshing dialog will be opened next.

Materials

 * [[Image:Fem-material.svg|32px]] Material for solid: Lets you select a material from the database.


 * [[Image:Fem-material-fluid.svg|32px]] Material for fluid: Lets you select a material from the database.


 * [[Image:Fem-material-nonlinear.svg|32px]] Nonlinear mechanical material: Lets you select a material from the database.


 * [[Image:Arch_Material_Group.svg|32px]] Material editor:: Lets you open the material editor to edit materials

Element Geometry

 * [[Image:Fem-beam-section.svg|32px]] Beam cross section:


 * [[Image:Fem-beam-rotation.svg|32px]] Beam rotation:


 * [[Image:Fem-shell-thickness.svg|32px]] Shell plate thickness:


 * [[Image:Fem-fluid-section.svg|32px]] Fluid section for 1D flow:

Electrostatic Constraints

 * [[Image:fem-constraint-electrostatic-potential.svg|32px]] Constraint electrostatic potential:

Fluid constraints

 * [[Image:Fem-constraint-initial-flow-velocity.svg|32px]] Constraint initial flow velocity:


 * [[Image:Fem-constraint-fluid-boundary.svg|32px]] Constraint fluid boundary:


 * [[Image:Fem-constraint-flow-velocity.svg|32px]] Constraint flow velocity:

Mechanical constraints

 * [[Image:Fem-constraint-fixed.svg|32px]] Constraint fixed: Used to define a fixed constraint on point/edge/face(s).


 * [[Image:Fem-constraint-displacement.svg|32px]] Constraint displacement: Used to define a displacement constraint on point/edge/face(s).


 * [[Image:Fem-constraint-planerotation.svg|32px]] Constraint plane rotation: Used to define a plane rotation constraint on a planar face.


 * [[Image:Fem-constraint-contact.svg|32px]] Constraint contact: Used to define a contact constraint between two faces.


 * [[Image:Fem-constraint-transform.svg|32px]] Constraint transform:


 * [[Image:Fem-constraint-force.svg|32px]] Constraint force: Used to define a force in [N] applied uniformly to a selectable face in a definable direction.


 * [[Image:Fem-constraint-pressure.svg|32px]] Constraint pressure: Used to define a pressure constraint.


 * [[Image:Fem-constraint-selfweight.svg|32px]] Constraint self weight: Used to define a gravity acceleration acting on a model.


 * [[Image:Fem-constraint-bearing.svg|32px]] Constraint bearing: Used to define a bearing constraint.


 * [[Image:Fem-constraint-gear.svg|32px]] Constraint gear: Used to define a gear constraint.


 * [[Image:Fem-constraint-pulley.svg|32px]] Constraint pulley: Used to define a pulley constraint.

Thermal constraints

 * [[Image:Fem-constraint-InitialTemperature.svg|32px]] Constraint initial temperature: Used to define the initial temperature of a body.


 * [[Image:Fem-constraint-heatflux.svg|32px]] Constraint heatflux: Used to define a heat flux constraint on a face(s).


 * [[Image:Fem-constraint-temperature.svg|32px]] Constraint temperature: Used to define a temperature constraint on a point/edge/face(s).


 * [[Image:Fem-constraint-heatflux.svg|32px]] Constraint body heat source:

Menu: Mesh

 * [[Image:Fem-femmesh-netgen-from-shape.svg|32px]] FEM mesh from shape by Netgen:


 * [[Image:Fem-femmesh-gmsh-from-shape.svg|32px]] FEM mesh from shape by GMSH:


 * [[Image:Fem-femmesh-boundary-layer.svg|32px]] FEM mesh boundary layer:


 * [[Image:Fem-femmesh-region.svg|32px]] FEM mesh region:


 * [[Image:Fem-femmesh-from-shape.svg|32px]] FEM mesh group:


 * [[Image:Fem-femmesh-create-node-by-poly.svg|32px]] Nodes set: Creates/defines a node set from FEM mesh.


 * [[Image:Fem-femmesh-to-mesh.svg|32px]] FEM mesh to mesh: Convert the surface of a FEM mesh to a mesh.

Menu: Solve

 * [[Image:Fem-solver.svg|32px]] Solver Calculix CCX tools: Creates a new solver for this analysis. In most cases the solver is created together with the analysis.


 * [[Image:Fem-solver.svg|32px]] Solver CalculiX:


 * [[Image:Fem-elmer.svg|32px]] Solver Elmer:


 * [[Image:Fem-solver.svg|32px]] Solver Z88:


 * [[Image:Fem-equation-heat.svg|32px]] Equation heat:


 * [[Image:Fem-equation-elasticity.svg|32px]] Equation elasticity:


 * [[Image:Fem-equation-electrostatic.svg|32px]] Equation electrostatic:


 * [[Image:Fem-equation-fluxsolver.svg|32px]] Equation fluxsolver:


 * [[Image:Fem-equation-flow.svg|32px]] Equation flow:


 * [[Image:Fem-control-solver.svg|32px]] Solver job control: Opens the menu to adjust and start the selected solver.


 * [[Image:Fem-run-solver.svg|32px]] Solver run calculation: Runs the selected solver of the active analysis.

Menu: Results

 * [[Image:Fem-purge-results.svg|32px]] Results purge: Deletes the results of the active analysis.


 * [[Image:Fem-result.svg|24px]] Result show: Used to display the result of an analysis.


 * [[Image:FEM_PostApplyChanges.png|32px]] Post Apply changes:


 * [[Image:Fem-data.svg|32px]] Post Pipeline from result:


 * [[Image:Fem-warp.svg|32px]] Post Create warp vector filter:


 * [[Image:Fem-clip-scalar.svg|32px]] Post Create scalar clip filter:


 * [[Image:Fem-cut.svg|32px]] Post Create cut filter:


 * [[Image:Fem-clip.svg|32px]] Post Create clip filter:


 * [[Image:Fem-DataAlongLine.svg|32px]] Post Create data along line filter:


 * [[Image:Fem-linearizedstresses.svg|32px]] Post Create linearized stresses:


 * [[Image:fem-post-filter-data-at-point.png|32px]] Post Create data at point filter:


 * [[Image:Fem-sphere.svg|32px]] Post Create functions:

Menu: Utilities

 * [[Image:fem-clipping-plane-add.svg|32px]] Clipping plane on face:


 * [[Image:fem-clipping-plane-remove-all.svg|32px]] Remove all clipping planes:

Context Menu

 * [[Image:Fem-femmesh-clear-mesh.svg|32px]] FEM mesh clear:


 * [[Image:Fem-femmesh-print-info.svg|32px]] FEM mesh print info:

Preferences

 * [[Image:Std_DlgParameter.svg|32px]] Preferences...: Preferences available in FEM Tools.

Учебники
Учебник 1 FEM CalculiX Cantilever 3D

Учебник 2 Учебник по МКЭ

Учебник 3 FEM Tutorial Python

Tutorial 4 FEM Shear of a Composite Block

Набор учебников по термомеханическому анализу Архив zip с запакованными файлами PDF

Video Tutorial 1 Forum post with you tube link

Video Tutorial 2 Forum post with you tube link

Further video Tutorials Forum post with you tube link


 * Extend FEM Module
 * Add FEM Equation Tutorial
 * Add FEM Constraint Tutorial

Ссылки
Установка FEM содержит детальное определение настройки работы модуля FEM.

FEM Mesh содержит дальнейшую информацию о сети МКЭ в FreeCAD

FEM Solver for further Informations about FEM Solvers in FEM Module,

FEM CalculiX содержит информацию об интерфейсе между модулем FEM и текущим решателем CalculiX

FEM Project содержит более детальную информацию о единицах, ограничениях и о проектировании модуля FEM.

FEM Concrete for informations about analysis's of concrete structures.