Difference between revisions of "FEM ConstraintSelfWeight"

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{{GuiCommand|Name=FEM ConstraintSelfWeight|MenuLocation=FEM → Constraint self weight||Workbenches=[[Fem Workbench|FEM]]|Shortcut=C,W|SeeAlso=[[FEM_tutorial|FEM tutorial]]}}
 
{{GuiCommand|Name=FEM ConstraintSelfWeight|MenuLocation=FEM → Constraint self weight||Workbenches=[[Fem Workbench|FEM]]|Shortcut=C,W|SeeAlso=[[FEM_tutorial|FEM tutorial]]}}
  
==Description==
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==Description== <!--T:2-->
 
Constraint self weight defines gravity acceleration 9,81 m/s^2 acting on the whole model in the prescribed direction.
 
Constraint self weight defines gravity acceleration 9,81 m/s^2 acting on the whole model in the prescribed direction.
  
==How to use==
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==How to use== <!--T:3-->
 
#Click on [[Image:FEM ConstraintSelfWeight.png|32px]] or choose {{KEY| FEM}}  →  {{KEY|[[Image:FEM ConstraintSelfWeight.png|32px]] Constraint self weight}}  from the top menu or press {{KEY|C}} then {{KEY|W}} keys.
 
#Click on [[Image:FEM ConstraintSelfWeight.png|32px]] or choose {{KEY| FEM}}  →  {{KEY|[[Image:FEM ConstraintSelfWeight.png|32px]] Constraint self weight}}  from the top menu or press {{KEY|C}} then {{KEY|W}} keys.
 
#You can modify the direction of gravitation by changing its vector coordinates in the property bar of newly created ConstraintSelfWeight object.
 
#You can modify the direction of gravitation by changing its vector coordinates in the property bar of newly created ConstraintSelfWeight object.
  
==Limitations==
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==Limitations== <!--T:4-->
 
*You need to modify .inp file to edit gravity acceleration.
 
*You need to modify .inp file to edit gravity acceleration.
 
*Self weight is applied to the whole model.
 
*Self weight is applied to the whole model.
  
==Changing gravity acceleration==  
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==Changing gravity acceleration== <!--T:5-->
 
Acceleration constant can be edited by hand modification after generating CalculiX input file.
 
Acceleration constant can be edited by hand modification after generating CalculiX input file.
  
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Example of lines in .inp file:
 
Example of lines in .inp file:
 
{{Code|code=
 
{{Code|code=

Revision as of 22:17, 18 March 2017

FEM ConstraintSelfWeight.png FEM ConstraintSelfWeight

Menu location
FEM → Constraint self weight
Workbenches
FEM
Default shortcut
C,W
Introduced in version
-
See also
FEM tutorial


Description

Constraint self weight defines gravity acceleration 9,81 m/s^2 acting on the whole model in the prescribed direction.

How to use

  1. Click on FEM ConstraintSelfWeight.png or choose FEMFEM ConstraintSelfWeight.png Constraint self weight from the top menu or press C then W keys.
  2. You can modify the direction of gravitation by changing its vector coordinates in the property bar of newly created ConstraintSelfWeight object.

Limitations

  • You need to modify .inp file to edit gravity acceleration.
  • Self weight is applied to the whole model.

Changing gravity acceleration

Acceleration constant can be edited by hand modification after generating CalculiX input file.

Example of lines in .inp file:

*DLOAD
Eall,GRAV,9810,0.0,0.0,-1.0

where 9810 is gravity acceleration in [mm/s^2]

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