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      <title>TRIM</title>
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      <div class="title_refTopic" id="xps10_pagetitle">TRIM </div>
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      <h4 class="refClassification">Trim Variable Constraint </h4>
      <p class="para_refTopic">Specifies constraints for aeroelastic trim variables. The SPLINE1 and SPLINE4 entries need to be here for the finite plate spline. </p>
      <div class="title_refCategory">Format: </div>
      <div class="refCategoryContent">
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                     <p class="para_th">1 </p>
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                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">2 </p>
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                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">3 </p>
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                     <p class="para_th">4 </p>
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                     <p class="para_th">5 </p>
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                     <p class="para_th">6 </p>
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                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">7 </p>
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                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">8 </p>
                  </th>
                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">9 </p>
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                  <th align="center" colspan="1" rowspan="1">
                     <p class="para_th">10 </p>
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            <tbody>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">TRIM </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">ID </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">MACH </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">Q </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">LABEL1 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">UX1 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">LABEL2 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">UX2 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">AEQR </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">LABEL3 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">UX3 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">-etc.- </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
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         </table><br></div>
      <div class="title_refCategory">Example: </div>
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                     <p class="para_td">TRIM </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">1 </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">0.9 </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">100. </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">URDD3 </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">1.0 </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">ANGLEA </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">7.0 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">0.0 </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
               </tr>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">&nbsp; </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">ELEV </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">0.2 </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
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                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
                  </td>
                  <td align="center" colspan="1" rowspan="1">
                     <p class="para_td">&nbsp; </p>
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      <div class="title_refCategory">Fields:</div>
      <div class="refCategoryContent">
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                  <th align="left" colspan="1" rowspan="1">
                     <p class="para_th"><b class="uiTerm">Field </b></p>
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                  <th align="left" colspan="1" rowspan="1">
                     <p class="para_th"><b class="uiTerm">Contents </b></p>
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            <tbody>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">SID </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Trim set identification number.  (Integer &gt; 0) </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">MACH </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Mach number. (Real &ge; 0.0 and &ne; 1.0) </p>
                  </td>
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               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Q </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Dynamic pressure.  (Real &gt; 0.0) </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">LABELi </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">The label identifying aerodynamic trim variables defined on an AESTAT or AESURF entry.  (Character) </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">UXi </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">The magnitude of the aerodynamic extra point degree-of-freedom.  (Real) </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">AEQR </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Flag to request a rigid trim analysis (Real &ge; 0.0 and &le; 1.0, Default1.0.  A value of 0.0 provides a rigid trim analysis, see Remark <a class="links" href="javascript:void(0)" onclick="top.openFile('QRG/20topic_28.html#ref91781');return(false);">38-4. </a></p>
                  </td>
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      <div class="title_refCategory">Remarks: </div>
      <div class="refCategoryContent">
         <ol type="1" start="1">
            <li>
               <p class="para_item">The TRIM entry must be selected with the Case Control command TRIM=SID. </p>
            </li>
            <li>
               <p class="para_item">The selected TRIM entry specifies the constrained values of the listed extra point degrees-of-freedom (&ldquo;trim variables&rdquo;) for a particular loading condition.  These variables are listed on AESTAT and/or AESURF entries. </p>
            </li>
            <li>
               <p class="para_item">If MACH is less than 1.0, then the Doublet-Lattice theory is used.  If MACH is greater than 1.0, then the ZONA51 theory is used. </p>
            </li>
            <li><a name="ref91781"></a><p class="para_item">AEQR=0.0 can be used to perform a rigid trim analysis (ignoring the effects of structural deformation on the loading). AEQR=1.0 provides standard aeroelastic trim analysis. Intermediate values are permissible, but have no physical interpretation (they may be useful for model checkout). </p>
            </li>
         </ol>
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