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<a name = "hj-top"> </a><table class = "table1" id = "table11"><tr><td><table class = "DocHeader"><tr><td class = "DocHeader1" colspan = "2"><h1>About the Rim Example</h1></td></tr><tr><td class = "DocHeader4" colspan = "2"/></tr><tr><td class = "DocHeader3" colspan = "2"><table class = "DocThemeIntro" id = "table12"><tr><td class = "Intro1Only"><p class = "shortdesc">This example illustrates controller-based shape optimization of a rim.<p>This page discusses: </p><ul><li><a href = "#tso-c-example-shape-rim__cs-model" id = "toc_rg" title = "">About the Model</a></li><li><a href = "#tso-c-example-shape-rim__" id = "toc_rg" title = "">Procedure Summary</a></li></ul>
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<div class = "section" id = "tso-c-example-shape-rim__cs-model"><h2 class = "title sectiontitle">About the Model</h2>
 The optimization task is to lower the maximum von Mises stresses
while keeping the initial volume of the rim. Further several manufacturing restrictions are
considered. The new design must show rotational symmetry by 60°. The rim holes must remain
stampable after optimization. CHECK_SLIDE restrictions are set on the inner and outer rim
surfaces, which prevents them from violation, caused by the change of the rim holes outlines
during optimization. A turnable restriction is specified for the inner and outer surfaces of
the rim holes. The rim model is shown in the following figure: 
<p><br/><img class = "image" src = "../TsoExampleImages/shapeRimModel.png"/><br/></p>
<p>The rim is modeled using 3D solid elements. Only the surface nodes of the
rim holes are used as design nodes. Two <span class = "ph">load cases</span> are considered.
The loads are applied on the node in the middle of the mounting hole and transferred to the structure through RBE2 elements.</p>
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<div class = "section"><p><map name = "FPMap1"><area href = "#hj-top" title = "Back to Top" shape = "rect" coords = "416, 0, 435, 10"/></map><span class = "itemsprite"/></p><h2 class = "title sectiontitle">Procedure Summary</h2>

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<td class = "entry">Model:</td>
<td class = "entry">rim.ext</td>
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<td class = "entry">Design Area:</td>
<td class = "entry">All nodes inside rim holes</td>
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<td class = "entry">Objective:</td>
<td class = "entry">Minimize von Mises stress</td>
</tr>
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<td class = "entry">Constraint:</td>
<td class = "entry"><p>Maximum volume: 100%</p>
                      <p>Turnable inner and outer surface</p>
                      <p>Rotational symmetry</p>
                      <p>Stampable rim holes</p></td>
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