FEM ConstraintSelfWeight: Difference between revisions
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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]]}} |
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==Description== |
==Description== <!--T:2--> |
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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. |
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==How to use== |
==How to use== <!--T:3--> |
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#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. |
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#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. |
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==Limitations== |
==Limitations== <!--T:4--> |
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*You need to modify .inp file to edit gravity acceleration. |
*You need to modify .inp file to edit gravity acceleration. |
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*Self weight is applied to the whole model. |
*Self weight is applied to the whole model. |
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==Changing gravity acceleration== |
==Changing gravity acceleration== <!--T:5--> |
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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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<!--T:6--> |
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Example of lines in .inp file: |
Example of lines in .inp file: |
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{{Code|code= |
{{Code|code= |
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Revision as of 21:17, 18 March 2017
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| 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
- Click on
or choose FEM → Constraint self weight from the top menu or press C then W keys. - 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]