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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>Maximizing the Displacement of a Node for the Mechanism Model </h1></td></tr><tr><td class = "DocHeader4" colspan = "2"/></tr><tr><td class = "DocHeader3"><table class = "DocHeaderIntro" id = "table12"><tr><td class = "Intro1Only"><p class = "shortdesc">The present example shows that the topology optimization by <span class = "ph">SIMULIA Tosca Structure</span> is also capable of performing a mechanism design. The
object function is now different, here opposite, from the
classic compliance formulation. The objective is now to maximize the displacement of a node for a given
actuator force.
</p></td></tr></table></td><td class = "DocHeader2"><table class = "DocTopicsSeeAlso" id = "table13"><tr><td class = "TopicsTitle">See Also</td></tr><tr><td><a title = "To get an impression of the quality of the optimization, it is necessary to check the values of the constraints and the objective at the end of the optimization." href = "tso-c-example-topo-checkOptResult.htm#tso-c-example-topo-checkOptResult">About Checking the Quality of the Optimization Result</a></td></tr></table></td></tr></table>



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<section><ol class = "ol steps"><li class = "li step stepexpand">
Define a Design Response (DRESP) as follows:
<div class = "itemgroup stepresult">
<pre class = "codeblock">
DRESP
  ID_NAME  = DRESP_NODE_X
  TYPE     = DISP_X
  DEF_TYPE = SYSTEM
  LC_SET   = STATIC,1,ALL
  NODE     = 2
END_
</pre>
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</li><li class = "li step stepexpand">
Define the Objective Function (OBJ_FUNC) as follows:
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<pre class = "codeblock">
OBJ_FUNC
  ID_NAME = MIN_DISP
  DRESP   = DRESP_NODE_X, 1.0, 0.0
  TARGET  = MIN
END_
</pre>
</div>
</li><li class = "li step stepexpand">
Define the Volume Constraint and the Frozen Area as specified in the Procedure Summary.
</li></ol></section>
<p class = "result">
The result looks as follows:<br/><img class = "image" src = "../TsoExampleImages/sensTopoMechanismResult.png"/><br/>
<p>In this figure, the complete model (consisting of the model that has been actually optimized and its reflection around x-axis) is shown. This inverter mechanism is a well known example that is found in the academic literature.</p>
</p>
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