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      <title>TFL</title>
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      <div class="title_refTopic" id="xps10_pagetitle">TFL </div>
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      <h4 class="refClassification">Transfer Function Set Selection </h4>
      <p class="para_refTopic">Selects the transfer function set(s) to be added to the direct input matrices. </p>
      <div class="title_refCategory">Formats: </div>
      <div class="refCategoryContent">
         <p class="para_refCategory">TFL={n<sub class="subscript">1</sub>, [n<sub class="subscript">2</sub>, n<sub class="subscript">3</sub> THRU n<sub class="subscript">4</sub>, EXCEPT n<sub class="subscript">5</sub>, n<sub class="subscript">6</sub>, n<sub class="subscript">7</sub>]} 
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      <div class="title_refCategory">Examples: </div>
      <div class="refCategoryContent"><pre class="indent">TFL=77
TFL=1, 25, 77
TFL=5, 6, 7, 8, 9, 10 THRU 55 EXCEPT 15, 16, 77, 78, 79
TFL=1 THRU 10</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<sub class="subscript">1</sub>, n<sub class="subscript">2</sub>, etc. 
                     </p>
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                     <p class="para_td">Identification numbers of TF Bulk Data entries.  (Integer&gt;0) </p>
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                     <p class="para_td">n<sub class="subscript">3</sub> THRU n<sub class="subscript">4</sub></p>
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                  <td align="left" colspan="1" rowspan="1" valign="top">
                     <p class="para_td">Identification numbers of TF bulk data entries (n<sub class="subscript">3</sub>&gt;n<sub class="subscript">4</sub>). (Integer&gt;0) 
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                     <p class="para_td">EXCEPT </p>
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                     <p class="para_td">Identification numbers following EXCEPT will be deleted from the list as long as they are in the range of the set defined by the immediately preceding THRU. An EXCEPT list may not include a THRU. </p>
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      <div class="title_refCategory">Remarks: </div>
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            <li>
               <p class="para_item">Transfer functions will not be used unless selected in the Case Control Section. </p>
            </li>
            <li>
               <p class="para_item">Transfer functions are supported in dynamics problems only. </p>
            </li>
            <li>
               <p class="para_item">Transfer functions are described in the <a class="links" href="javascript:void(0)" onclick="top.popUpPage('QRG/linkInter_target_not_resolved.html#adv_dyn:ref86112:-aux,-home','linkInter','menubar=yes,status=yes,resizable=yes,toolbar=yes,scrollbars=yes,location=no,directories=no');return(false);"><em>NX Nastran Advanced Dynamic Analysis User&rsquo;s Guide</em></a>.
               </p>
            </li>
            <li>
               <p class="para_item">It is recommended that PARAM,AUTOSPC,NO be specified when using transfer functions.  See the <em>NX Nastran User&rsquo;s Guide</em>. 
               </p>
            </li>
            <li>
               <p class="para_item">The transfer functions are additive if multiple TF values are referenced on the TFL command. </p>
            </li>
            <li>
               <p class="para_item">Identification numbers following EXCEPT within the range of the THRU must be in ascending order. </p>
            </li>
            <li>
               <p class="para_item">In the third example in the Examples section, the numbers 77, 78, 79 are included because they are outside the prior THRU range. </p>
            </li>
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