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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>
Combine Static <span class = "ph">load cases</span>
(Controller-Based Algorithm)
</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 task shows you how to combine multiple <span class = "ph">load cases</span> when using the BEAD_CONTROLLER algorithm.</span>

</p>

</p></td></tr></table></td></tr></table>




<div class = "body taskbody">
<div class = "section context"><p class = "context"><span class = "run-in.context">Context: </span>
If more <span class = "ph">load cases</span>
and/or substeps are present in the FE-analysis, <span class = "ph">Tosca Structure.bead</span>
will try to combine all these <span class = "ph">load cases</span>.
</p></div>

<section><ol class = "ol steps"><li class = "li step stepexpand">

The "best-practice-way" is to define each <span class = "ph">load case</span>
separately in its own <code class = "ph codeph">DRESP</code>.

</li><li class = "li step stepexpand">

Thereby you can easily
give the <span class = "ph">load cases</span>
different weights in the objective function:

<p>
<pre class = "codeblock">
<code class = "ph codeph">
OBJ_FUNC
  ID_NAME = minimize_compliance
  DRESP   = dresp_compliance_1, 0.90
  DRESP   = dresp_compliance_2, 1.10
  TARGET  = MIN
END_
</code>
</pre>
<p>Here, the first design response is weighted 10% less than the norm, and
the second 10% more than the norm. The norm (1.0) is default.</p>
<p>
<table class = "Remark" id = "table132"><tr><td class = "Remark"><span class = "run-in.important">Important:
				</span><span class = "notecontent">
<ul class = "ul">
<li class = "li">It is highly recommended only to combine linear static <span class = "ph">load cases</span>.</li>
<li class = "li">It is recommended to look up the definition of <span class = "ph">load cases</span>.</li>
<li class = "li">The reference value has no effect in the controller algorithm.</li>
</ul>
</span></td></tr></table>

</p>
</p>
<div class = "itemgroup stepresult">
<span class = "ph">Tosca Structure.bead</span>
will try to combine All <span class = "ph">load cases</span>
in the finite element calculation with the weighting of 1.0. <table class = "Remark" id = "table132"><tr><td class = "Remark"><span class = "run-in.important">Important:
				</span><span class = "notecontent">
This method is NOT recommended and the former mentioned method of defining
the <span class = "ph">load cases</span>
separately and then combining them in the objective function is emphasized.
</span></td></tr></table>

</div>
</li></ol></section>
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