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      <title>RSMETHOD</title>
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      <div class="title_refTopic" id="xps10_pagetitle">RSMETHOD </div>
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      <h4 class="refClassification">Real Eigenvalue Extraction Method Selection </h4>
      <p class="para_refTopic">Selects the real eigenvalue extraction parameters in the component mode reduction of the residual structure for direct and modal solutions. </p>
      <div class="title_refCategory">Format: </div>
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         <p class="para_refCategory">RSMETHOD = n </p>
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      <div class="title_refCategory">Examples: </div>
      <div class="refCategoryContent"><pre class="indent">RSMETHOD=33</pre></div>
      <div class="title_refCategory">Describers:</div>
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                     <p class="para_th"><b class="uiTerm">Describer </b></p>
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                     <p class="para_th"><b class="uiTerm">Meaning </b></p>
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                     <p class="para_td">n </p>
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                     <p class="para_td">Set identification number of an EIGR or EIGRL Bulk Data entry. (Integer&gt;0) </p>
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      <div class="title_refCategory">Remarks: </div>
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               <p class="para_item">RSMETHOD specifies the set identification number of an EIGR or EIGRL entry to be used in the computation of the normal modes on the o-set (fixed boundary modes) or v-set (mixed boundary modes) of the residual structure depending on the b-set and/or c-set entries. These modes are calculated for a component mode reduction of the residual structure when QSET type entries exist. If QSET type entries do not exist in the residual structure a component mode reduction for SE 0 is not performed. </p>
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            <li>
               <p class="para_item">Component mode reduction of a residual structure is used to account for local residual flexibilitiy in the residual. Similar to component mode reduction of a superelement in which residual flexibility effects are obtained for the exterior DOF, a component mode reduction on the residual accounts for residual flexibility at DOF identified with ASET, BSET, and CSET type entries. </p>
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               <p class="para_item">If the set identification number selected is present on both EIGRL and EIGR entries, the EIGRL entry will be used. This entry requests the Lanczos eigensolution method. </p>
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            <li>
               <p class="para_item">For CMR of RS the user must have QSET type entries along with ASET, BSET, and CSET type entries. In contrast, when using CMR of a superelement other than 0, the user must use SEBSET, SECSET, SEQSET, or SESET type entries. </p>
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               <p class="para_item">If any of the following conditions exist, a Guyan reduction is executed and the results may be poor because of the absence of a dynamic portion of the reduction: </p>
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                  <li>
                     <p class="para_item">QSET entries present but RSMETHOD not specified. </p>
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                     <p class="para_item">DOF referenced by QSET do not exist. </p>
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                     <p class="para_item">RSMETHOD specified but QSET does not exist. </p>
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