FEM Analysis: Difference between revisions

Revision as of 09:32, 25 February 2021

Other languages:

Menu location
FEM Analysis
Model → Analysis container‏‎
Workbenches
FEM
Default shortcut
S A
Introduced in version
-
See also
FEM tutorial

Description

The FEM Analysis could be seen as a Container that holds all objects of a Finite Element Analysis. It is mandatory to have a analysis container which holds all the needed objects. At least one of the following objects is needed for a mechanical analysis:

Usage

Press the button, choose Model → Analysis container‏‎ from the top menu, or use the keyboard shortcut: S then A.
A new Analysis is created and set to active.
Other objects could be added or removed to the analysis container by drag and drop.
To add new FEM Objects to the document the analysis has to be active. Double click on the analysis does activate the analysis.

Options

Up to date there is no option to choose.
A frequency analysis in in development. See [1] for more informations.

Properties

DataOutpuDir: Specifies the working directory of the analysis

Scripting

most code here is depreciated in 0.17.

new analysis

MechanicalAnalysis.makeMechanicalAnalysis( name )

add object to the analysis

App.ActiveDocument.MechanicalAnalysis.Member = App.ActiveDocument.MechanicalAnalysis.Member + [ (object) ]

remove object from the analysis

member = App.ActiveDocument.MechanicalAnalysis.Member
member.remove( documentobject )
 App.ActiveDocument.MechanicalAnalysis.Member = member

Examples:

import MechanicalAnalysis
analysis = MechanicalAnalysis.makeMechanicalAnalysis("MechanicalAnalysis")
FemGui.setActiveAnalysis(analysis)

addobj = App.ActiveDocument.getObject("MechanicalMaterial")
App.ActiveDocument.MechanicalAnalysis.Member = App.ActiveDocument.MechanicalAnalysis.Member + [addobj]

removeobj = App.ActiveDocument.getObject("MechanicalMaterial")
member = App.ActiveDocument.MechanicalAnalysis.Member
member.remove(removeobj)
App.ActiveDocument.MechanicalAnalysis.Member = member

Material for solid

FEM

FEM Analysis

Materials: Solid, Fluid, Nonlinear mechanical, Reinforced (concrete); Material editor

Element geometry: Beam (1D), Beam rotation (1D), Shell (2D), Fluid flow (1D)

Constraints

Electromagnetic: Electrostatic potential, Current density, Magnetization

Fluid: Initial flow velocity, Initial pressure, Flow velocity

Geometrical: Plane rotation, Section print, Transform

Mechanical: Fixed, Displacement, Contact, Tie, Spring, Force, Pressure, Centrif, Self weight

Thermal: Initial temperature, Heat flux, Temperature, Body heat source

Overwrite Constants: Constant vacuum permittivity

Mesh: Mesh Netgen, Mesh GMSH, Mesh boundary layer, Mesh region, Mesh group, Nodes set, Mesh to mesh

Solve: CalculiX Standard, Elmer, Mystran, Z88; Equations: Deformation, Elasticity, Electrostatic, Electricforce, Magnetodynamic, Magnetodynamic 2D, Flow, Flux, Heat; Solver: Solver control, Solver run

Results: Purge, Show; Postprocessing: Apply changes, Pipeline from result, Warp filter, Scalar clip filter, Function cut filter, Region clip filter, Contours filter, Line clip filter, Stress linearization plot, Data at point clip filter, Filter function plane, Filter function sphere, Filter function cylinder, Filter function box

Utilities: Clipping plane, Remove clipping planes, Open FEM examples; Mesh clear, Mesh display info

Additional: Preferences; FEM Install, FEM Mesh, FEM Solver, FEM CalculiX, FEM Concrete; FEM Element Types

User documentation

Getting started
Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate

Help: Tutorials, Video tutorials
Workbenches: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web

Addons: Addon Manager, External workbenches, Scripting and macros

Hubs: User hub, Power users hub, Developer hub

@@ Line 16: / Line 16: @@
 |MenuLocation=Model → Analysis container‏‎
 |Workbenches=[[FEM_Module|FEM]]
-|Shortcut={{KEY|N}} {{KEY|A}}
+|Shortcut={{KEY|S}} {{KEY|A}}
 |SeeAlso=[[FEM_tutorial|FEM tutorial]]
 }}
@@ Line 27: / Line 27: @@
 * [[FEM_ConstraintFixed| fixed constraint]]
 * [[FEM_ConstraintForce| force constraint]] or [[FEM_ConstraintPressure| pressure constraint]]
 ==Usage== <!--T:10-->
 <!--T:47-->
-# Press the {{KEY|[[Image:FEM_Analysis.svg|24px]] [[FEM_Analysis|Analysis container]]}} button, or press {{KEY|N}} then {{KEY|A}} keys. A new Analysis is created and set to active.
+# Press the {{Button|[[Image:FEM_Analysis.svg|16px]]}} button, choose {{MenuCommand|Model → [[Image:FEM_Analysis.svg|16px]] Analysis container‏‎}} from the top menu, or use the keyboard shortcut: {{KEY|S}} then {{KEY|A}}.
+# A new Analysis is created and set to active.
 # Other objects could be added or removed to the analysis container by drag and drop.
 # To add new FEM Objects to the document the analysis has to be active. Double click on the analysis does activate the analysis.
 ==Options== <!--T:15-->
@@ Line 42: / Line 41: @@
 * Up to date there is no option to choose.
 * A frequency analysis in in development. See [http://forum.freecadweb.org/viewtopic.php?f=18&t=12189] for more informations.
 ==Properties== <!--T:20-->
@@ Line 48: / Line 46: @@
 <!--T:49-->
 * {{PropertyData|OutpuDir}}: Specifies the working directory of the analysis
 ==Scripting== <!--T:25-->
@@ Line 95: / Line 92: @@
 App.ActiveDocument.MechanicalAnalysis.Member = member
 }}
-{{clear}}
 <translate>
 <!--T:52-->
 {{Docnav