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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>Optimizing the Hub Model </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 = "header"><p class = "abstract">
<span class = "shortdesc">This example illustrates the shape optimization of a hub of a wind
turbine system.
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<section><div class = "li step p">
Define a link condition (LINK_SHAPE) for the SURF_CYCLIC_PLANE-symmetry:
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<pre class = "codeblock">
LINK_SHAPE
 ID_NAME          = LINK_SHAPE_1_SYMMETRY_CONTROL_3
 MAIN           = MAX
 CLIENT           = SURF_CYCLIC_PLANE_SYM
 CYCLIC_SYM_START = 0., 0. , 1.
 CLIENT_DIR       = 1.,0.,0.
 CS               = CS_0
 TOL              = 0.1
 ANGLE            = 120.
END_
</pre>
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<p class = "result">
The result looks as follows:
<p><br/><img class = "image" src = "../TsoExampleImages/shapeHubResult1.png"/><br/></p>
<p>The front of the hub looks as follows:<br/><img class = "image" src = "../TsoExampleImages/shapeHubresult2.png"/><br/></p>
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