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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 Mode Tracking 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"> The present example shows that the topology optimization by Tosca Structure is also
            capable of performing mode tracking on dynamic frequency analysis. The setup compared to
            a standard eigenfrequency analysis is the same. Except for the use of the mode
            tracking option, causing the optimizer to maintain the initial mode order even thought mode switching occurs.<p>This page discusses: </p><ul><li><a href = "#tso-c-example-topo-sensTopoModetracking__cs-model" id = "toc_rg" title = "">About the Model</a></li><li><a href = "#tso-c-example-topo-sensTopoModetracking__cs-summary" id = "toc_rg" title = "">Procedure Summary</a></li></ul>
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<div class = "section" id = "tso-c-example-topo-sensTopoModetracking__cs-model"><h2 class = "title sectiontitle">About the Model</h2>

<p> The input model describes a pendulum clamped at the front with a frozen geometry at the
    rear end. The optimization setup is a volume minimization with a relative
    frequency constraint for the second mode with a value of greater equal than 178%. The
    following image shows the model representation as well as the meaning of the different
    modes: <br/><img class = "image" src = "../TsoExampleImages/sensTopoModetracking_Model.png"/><br/>
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<div class = "section" id = "tso-c-example-topo-sensTopoModetracking__cs-summary"><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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<table class = "table"><caption/><colgroup><col style = "width:13.071895424836603%"/><col style = "width:86.9281045751634%"/></colgroup><tbody class = "tbody"><tr class = "row"><td class = "entry">Model:</td><td class = "entry">modetracking.ext
</td></tr><tr class = "row"><td class = "entry">Design Area:</td><td class = "entry"> All elements except frozen regions
</td></tr><tr class = "row"><td class = "entry">Objective:</td><td class = "entry">Minimize the volume of the design space
</td></tr><tr class = "row"><td class = "entry">Constraint:</td><td class = "entry">Second eigenfrequency is greater equal than 178%
</td></tr><tr class = "row"><td class = "entry">Iterations:</td><td class = "entry">70</td></tr><tr class = "row">
<td class = "entry">Settings:</td><td class = "entry">Mode tracking with initial reference and 10 tracked modes</td></tr>
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