76 lines
5.0 KiB
HTML
76 lines
5.0 KiB
HTML
<html><head><title>FEM ConstraintDisplacement</title><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><link type='text/css' href='wiki.css' rel='stylesheet'></head><body><h1>FEM ConstraintDisplacement</h1></div>
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<div id="mw-content-text" lang="en" dir="ltr" class="mw-content-ltr"><div class="mw-parser-output"><table class="fcinfobox wikitable ct" >
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<h3><span class="mw-headline" id="FEM_ConstraintDisplacement"><a href="https://www.freecadweb.org/wiki/index.php?title=File:FEM_ConstraintDisplacement.png" class="image"><img alt="FEM ConstraintDisplacement.png" src="32px-FEM_ConstraintDisplacement.png" width="32" height="32" srcset="/wiki/images/thumb/c/c6/FEM_ConstraintDisplacement.png/48px-FEM_ConstraintDisplacement.png 1.5x, /wiki/images/c/c6/FEM_ConstraintDisplacement.png 2x" /></a> FEM ConstraintDisplacement</span></h3>
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<th class="ctOdd">Menu location
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<td class="ctEven">Model → Mechanical Constraints → Constraint displacement
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<th class="ctOdd">Workbenches
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<td class="ctEven"><a href="Fem_Workbench.html" class="mw-redirect" title="Fem Workbench">FEM</a>
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<th class="ctOdd">Default shortcut
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<th class="ctOdd">See also
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<td class="ctEven"><a href="FEM_tutorial.html" title="FEM tutorial">FEM tutorial</a>
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<td class="ctToc"><br /><div id="toc" class="toc"><div class="toctitle"><h2>Contents</h2></div>
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<ul>
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<li class="toclevel-1"><a href="#FEM_ConstraintDisplacement"><span class="tocnumber">1</span> <span class="toctext">FEM ConstraintDisplacement</span></a></li>
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<li class="toclevel-1 tocsection-1"><a href="#Description"><span class="tocnumber">2</span> <span class="toctext">Description</span></a></li>
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<li class="toclevel-1 tocsection-2"><a href="#How_to_use"><span class="tocnumber">3</span> <span class="toctext">How to use</span></a></li>
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<li class="toclevel-1 tocsection-3"><a href="#Limitations"><span class="tocnumber">4</span> <span class="toctext">Limitations</span></a></li>
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<li class="toclevel-1 tocsection-4"><a href="#Notes"><span class="tocnumber">5</span> <span class="toctext">Notes</span></a></li>
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</td></tr></table>
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<p><br />
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</p>
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<h2><span class="mw-headline" id="Description">Description</span></h2>
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<p>Creates a FEM constraint for a prescribed displacement of a selected object for a specified degree of freedom.
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</p>
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<h2><span class="mw-headline" id="How_to_use">How to use</span></h2>
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<ol><li>Click on <a href="https://www.freecadweb.org/wiki/index.php?title=File:FEM_ConstraintDisplacement.png" class="image"><img alt="FEM ConstraintDisplacement.png" src="32px-FEM_ConstraintDisplacement.png" width="32" height="32" srcset="/wiki/images/thumb/c/c6/FEM_ConstraintDisplacement.png/48px-FEM_ConstraintDisplacement.png 1.5x, /wiki/images/c/c6/FEM_ConstraintDisplacement.png 2x" /></a> or choose <span style="background: #DDDDDD; border: 1px solid #888888; padding: 0px 5px 1px 5px;">Model</span> → <b>Mechanical Constraints</b> → <span style="background: #DDDDDD; border: 1px solid #888888; padding: 0px 5px 1px 5px;"><a href="https://www.freecadweb.org/wiki/index.php?title=File:FEM_ConstraintDisplacement.png" class="image"><img alt="FEM ConstraintDisplacement.png" src="32px-FEM_ConstraintDisplacement.png" width="32" height="32" srcset="/wiki/images/thumb/c/c6/FEM_ConstraintDisplacement.png/48px-FEM_ConstraintDisplacement.png 1.5x, /wiki/images/c/c6/FEM_ConstraintDisplacement.png 2x" /></a> Constraint displacement</span> from the top menu.</li>
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<li>Select in the 3D-view the object the constraint should be applied to, which can be
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<ol><li> vertices (corners)</li>
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<li> edges</li>
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<li> faces</li></ol></li>
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<li>Choose a degree of freedom to fix or prescribe a displacement to.</li></ol>
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<h2><span class="mw-headline" id="Limitations">Limitations</span></h2>
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<h2><span class="mw-headline" id="Notes">Notes</span></h2>
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<ol><li>The constraint uses the *BOUNDARY card in CalculiX. Fixing a degree of freedom is explained at <a rel="nofollow" class="external free" href="http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node164.html">http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node164.html</a> and prescribing a displacement for a degree of freedom is explained at <a rel="nofollow" class="external free" href="http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node165.html">http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node165.html</a></li></ol>
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<p><br />
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</div><div class="printfooter">
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Online version: "<a dir="ltr" href="https://www.freecadweb.org/wiki/index.php?title=FEM_ConstraintDisplacement&oldid=257689">http://www.freecadweb.org/wiki/index.php?title=FEM_ConstraintDisplacement&oldid=257689</a>"</div>
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<h2>Navigation menu</h2>
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