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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 Hood (Eigenfrequency) 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 shows frequency optimization with controller-based optimization strategies.<p>This page discusses: </p><ul><li><a href = "#tso-c-example-bead-hoodEig__cs-model" id = "toc_rg" title = "">About the Model</a></li><li><a href = "#tso-c-example-bead-hoodEig__cs-ProcedureSummaryControllerbasedStrategy" id = "toc_rg" title = "">Procedure Summary (Controller-Based Strategy)</a></li></ul>
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<div class = "section" id = "tso-c-example-bead-hoodEig__cs-model"><h2 class = "title sectiontitle">About the Model</h2>
 The goal of this optimization is to maximize the first
eigenvalue of a bent plate. First eigenmode has the eigenvalue of 0.3098 (Using
<span class = "ph">MSC Nastran®</span>, 
other solvers might differ). In the following, the optimization is shown with a bead height of 0.5. <p>
<br/><img class = "image" src = "../TsoExampleImages/beadHoodEigModel.png"/><br/>
</p>
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<div class = "section" id = "tso-c-example-bead-hoodEig__cs-ProcedureSummaryControllerbasedStrategy"><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 (Controller-Based Strategy)</h2>

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<table class = "table"><caption/><colgroup><col style = "width:26.143790849673206%"/><col style = "width:73.8562091503268%"/></colgroup><tbody class = "tbody">
<tr class = "row">
<td class = "entry">Model:</td>
<td class = "entry">hood_eig.ext</td>
</tr>
<tr class = "row">
<td class = "entry">Design Area:</td>
<td class = "entry">All nodes</td>
</tr>
<tr class = "row">
<td class = "entry">Objective:</td>
<td class = "entry">Maximize first eigenfrequency</td>
</tr>
<tr class = "row">
<td class = "entry">Constraint:</td>
<td class = "entry">Maximum bead height 0.5</td>
</tr>
<tr class = "row">
<td class = "entry">Settings:</td>
<td class = "entry">BEAD_WIDTH = 1.5</td>
</tr>
</tbody></table>
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