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      <title>DISPLACEMENT</title>
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      <div class="title_refTopic" id="xps10_pagetitle">DISPLACEMENT </div>
      <hr noshade="true">
      <h4 class="refClassification">Displacement Output Request </h4>
      <p class="para_refTopic">Requests the form and type of displacement or pressure vector output.  Note: PRESSURE and VECTOR are equivalent commands.</p>
      <div class="title_refCategory">Format: </div>
      <div class="refCategoryContent">
         <p align="center"><img align="bottom" src="graphics/casecontrol4a-ufig15.gif"></p>
      </div>
      <div class="title_refCategory">Examples: </div>
      <div class="refCategoryContent"><pre class="indent">DISPLACEMENT=5
DISPLACEMENT(REAL)=ALL
DISPLACEMENT(SORT2, PUNCH, REAL)=ALL</pre></div>
      <div class="title_refCategory">Describers:</div>
      <div class="refCategoryContent">
         <table cellpadding="10" cellspacing="" width="100%" align="center">
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               <tr>
                  <th align="left" colspan="1" rowspan="1">
                     <p class="para_th"><b class="uiTerm">Describer </b></p>
                  </th>
                  <th align="left" colspan="1" rowspan="1">
                     <p class="para_th"><b class="uiTerm">Meaning </b></p>
                  </th>
               </tr>
            </thead>
            <tbody>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">SORT1 </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Output will be presented as a tabular listing of grid points for each load, frequency, eigenvalue, or time, depending on the solution sequence. </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">SORT2 </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Output will be presented as a tabular listing of load, frequency or time for each grid point. </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">PRINT </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">The printer will be the output medium. </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">PUNCH </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">The punch file will be the output medium. </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">PLOT </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Generates, but does not print, displacement data. </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">REAL or IMAG </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Requests rectangular format (real and imaginary) of complex output.  Use of either REAL or IMAG yields the same output. </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">PHASE </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Requests polar format (magnitude and phase) of complex output.  Phase output is in degrees. </p>
                  </td>
               </tr>
               <tr>
                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">ABS</p>
                  </td>
                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">For enforced motion dynamic analysis, displacement results will be output as absolute displacement.</p>
                  </td>
               </tr>
               <tr>
                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">REL</p>
                  </td>
                  <td colspan="1" rowspan="1" valign="top">
                     <p class="para_td">For enforced motion dynamic analysis, displacement results will be output relative to the enforced motion input.</p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">PSDF </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Requests the power spectral density function be calculated for random analysis post-processing. The request must be made above the subcase level and RANDOM must be selected in the Case Control. See remark 8.</p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">ATOC </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Requests the autocorrelation function be calculated for random analysis post-processing. The request must be made above the subcase level and RANDOM must be selected in the Case Control. See remark 8.</p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">CRMS </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Requests the cumulative root mean square function be calculated for random analysis post-processing. Request must be made above the subcase level and RANDOM must be made in the Case Control. See remark 8.</p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">RALL</p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Requests all of PSDF, ATOC, and CRMS be calculated for random analysis post-processing. The request must be made above the subcase level and RANDOM must be selected in the Case Control. See remark 8.</p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">RPRINT</p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Writes random analysis results to the print file. (Default) See remark 8.</p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">NORPRINT</p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Disables the writing of random analysis results to the print file. See remark 8.</p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">RPUNCH</p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Writes random analysis results to the punch file. See remark 8.</p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">ALL </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Displacements for all points will be output. </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">NONE </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Displacement for no points will be output. </p>
                  </td>
               </tr>
               <tr>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">n </p>
                  </td>
                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Set identification of a previously appearing SET command.  Only displacements of points with identification numbers that appear on this SET command will be output.  (Integer&gt;0) </p>
                  </td>
               </tr>
            </tbody>
         </table><br></div>
      <div class="title_refCategory">Remarks: </div>
      <div class="refCategoryContent">
         <ol type="1" start="1">
            <li>
               <p class="para_item">Both PRINT and PUNCH may be requested. </p>
            </li>
            <li>
               <p class="para_item">The defaults for SORT1 and SORT2 depend on the type of analysis: </p>
               <ul>
                  <li>
                     <p class="para_item">SORT1 is the default in static analysis, frequency response, steady state heat transfer analysis, real and complex eigenvalue analysis, flutter analysis, and buckling analysis. </p>
                  </li>
                  <li>
                     <p class="para_item">SORT2 is the default in transient response analysis (structural and heat transfer). SORT2 is not available for real eigenvalue (including buckling), complex eigenvalue, or flutter analysis. If SORT1 is selected in a transient solution for one or more of the commands ACCE, DISP, ENTH, FORC, HDOT, MPCF, OLOA, SPCF, STRA, STRE, and VELO then the remaining commands will also be output in SORT1 format. If SORT2 is selected in a frequency response solution for one or more of the commands ACCE, DISP, FORC, MPCF, OLOA, SPCF, STRA, STRE, and VELO then the remaining commands will also be output in SORT2 format. </p>
                  </li>
                  <li>
                     <p class="para_item">XY plot requests will force SORT2 format thus overriding SORT1 format requests. </p>
                  </li>
               </ul>
            </li>
            <li>
               <p class="para_item">VECTOR and PRESSURE are alternate forms and are entirely equivalent to DISPLACEMENT. </p>
            </li>
            <li>
               <p class="para_item">DISPLACEMENT = NONE overrides an overall output request. </p>
            </li>
            <li>
               <p class="para_item">The PLOT option is used when curve plots are desired in the magnitude/phase representation and no printer output request is present for magnitude/phase representation. </p>
            </li>
            <li>
               <p class="para_item">The units of translation are the same as the units of length of the model.  Rotations are in units of radians. </p>
            </li>
            <li>
               <p class="para_item">Displacement results are output in the global coordinate system (see field CD on the GRID Bulk Data entry). </p>
            </li>
            <li><a name="ref87969"></a><p class="para_item">The option of PSDF, ATOC, CRMS, and RALL, or any combination of them can be selected for random analysis. The results can be either printed to the .f06 file, punched to the punch file, or output to both files using RPRINT and RPUNCH.</p>
            </li>
            <li>
               <p class="para_item">When doing enforced motion dynamic analysis and relative output is requested (using the REL describer), the output will be relative to the input as described by the equation:</p>
               <p class="para_item"><img align="bottom" src="graphics/relative_motion_eqn.gif" border="0"></p>
               <p class="para_item">where u<sub class="subscript">f</sub> = absolute displacement
               </p>
               <p class="para_item">y<sub class="subscript">f</sub> = relative displacement
               </p>
               <p class="para_item">u<sub class="subscript">s</sub> = enforced motion.
               </p>
            </li>
         </ol>
      </div>
      <div class="title_refCategory">Remarks related to SOLs 601 and 701: </div>
      <div class="refCategoryContent">
         <ol type="1" start="1">
            <li>
               <p class="para_item">Output is restricted to REAL format. IMAG, PHASE, PSDF, ATOC and RALL are ignored. </p>
            </li>
            <li>
               <p class="para_item">Displacements, velocities and accelerations must be output for the same set of grid points if requested. Output requested for set n in this command will be combined with the sets requested in the VELOCITY and ACCELERATION commands, and displacements will be output at the grid points of the combined set. </p>
            </li>
         </ol>
      </div>
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