Abaqus 输出矩阵的方法.rar_ABAQUS 二次开发_abaqus 矩阵

<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/6265b0464c65f412590fc9f3/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/6265b0464c65f412590fc9f3/bg1.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x1 h3 y2 ff1 fs0 fc0 sc0 ls0 ws0">Abaqus <span class="ff2">输出矩阵的方法</span></div><div class="t m0 x1 h3 y3 ff2 fs0 fc0 sc0 ls0 ws0">在比<span class="_ _0"></span>较深<span class="_ _0"></span>入的<span class="_ _1"> </span><span class="ff1">CAE<span class="_"> </span></span>分析过<span class="_ _0"></span>程中<span class="_ _0"></span>，我<span class="_ _0"></span>们可<span class="_ _0"></span>能会<span class="_ _0"></span>关注<span class="_ _0"></span>模型<span class="_ _0"></span>中某<span class="_ _0"></span>些部<span class="_ _0"></span>分的<span class="_ _0"></span>刚度<span class="_ _0"></span>分布<span class="_ _0"></span>情况<span class="_ _0"></span>，因<span class="_ _0"></span>此需</div><div class="t m0 x1 h3 y4 ff2 fs0 fc0 sc0 ls0 ws0">要提取刚度矩阵参数，因为使用相对较少，目前的<span class="_ _2"> </span><span class="ff1">Abaqus<span class="_ _3"> </span></span>前处理模块<span class="_ _3"> </span><span class="ff1">CA<span class="_ _0"></span>E<span class="_ _3"> </span></span>中还无法直接实</div><div class="t m0 x1 h3 y5 ff2 fs0 fc0 sc0 ls0 ws0">现该设置，因此需要对其<span class="_ _3"> </span><span class="ff1">inp<span class="_"> </span></span>文件进行局部修改来定义。</div><div class="t m0 x1 h3 y6 ff1 fs0 fc0 sc0 ls0 ws0">Abaqus<span class="_"> </span><span class="ff2">输出刚度矩阵主要分<span class="_ _0"></span>为两大类，一<span class="_ _0"></span>类是输出某一<span class="_ _0"></span>部分的单元的<span class="_ _0"></span>刚度矩阵，一<span class="_ _0"></span>类是输</span></div><div class="t m0 x1 h3 y7 ff2 fs0 fc0 sc0 ls0 ws0">出整体模型的刚度矩阵（可含单元、弹簧、质量、阻尼、力等）。</div><div class="t m0 x1 h4 y8 ff3 fs0 fc0 sc0 ls0 ws0">1<span class="ff2">、<span class="fs1">输出</span><span class="sc1">单元矩阵</span></span></div><div class="t m0 x1 h4 y9 ff2 fs1 fc0 sc0 ls0 ws0">输出<span class="_ _0"></span>单<span class="_ _0"></span>元刚<span class="_ _0"></span>度<span class="_ _0"></span>矩阵<span class="_ _0"></span>的<span class="_ _0"></span>方式<span class="_ _0"></span>相<span class="_ _0"></span>对容<span class="_ _0"></span>易<span class="_ _0"></span>理解<span class="_ _0"></span>，<span class="_ _0"></span>当然<span class="_ _0"></span>你<span class="_ _0"></span>也<span class="_ _0"></span>可以<span class="_ _0"></span>从<span class="_ _0"></span>自带<span class="_ _0"></span>的<span class="_ _0"></span>英文<span class="_ _0"></span>帮<span class="_ _0"></span>助中<span class="_ _0"></span>需</div><div class="t m0 x1 h4 ya ff2 fs1 fc0 sc0 ls0 ws0">找答案，你只需要在<span class="_ _1"> </span><span class="ff3">inp<span class="_ _1"> </span></span>文件中添加下述关键字即可：</div><div class="t m0 x1 h5 yb ff4 fs0 fc0 sc0 ls0 ws0">*File F<span class="_ _4"></span>ormat,ASCII</div><div class="t m0 x1 h5 yc ff4 fs0 fc0 sc0 ls0 ws0">*Element<span class="_ _5"> </span> <span class="_ _5"> </span>Matrix<span class="_ _5"> </span> <span class="_ _5"> </span>Output,Elset=<span class="_ _0"></span><span class="fc1">xxx</span>,File</div><div class="t m0 x1 h5 yd ff4 fs0 fc0 sc0 ls0 ws0">Name=<span class="fc1">xxx</span>,F<span class="_ _4"></span>requency=1,Output File=User De!ned,Sti#ness=Y<span class="_ _6"></span>es</div><div class="t m0 x1 h4 ye ff2 fs1 fc0 sc0 ls0 ws0">其中<span class="_ _0"></span>第<span class="_ _0"></span>一行<span class="_ _0"></span>的<span class="_ _0"></span>目的<span class="_ _0"></span>是<span class="_ _0"></span>将软<span class="_ _0"></span>件<span class="_ _0"></span>默认<span class="_ _0"></span>生<span class="_ _0"></span>成的<span class="_ _0"></span>二<span class="_ _0"></span>进制<span class="_ _0"></span>文<span class="_ _0"></span>件<span class="_ _0"></span>转化<span class="_ _0"></span>为<span class="_ _7"> </span><span class="ff3">ASCII<span class="_ _1"> </span></span>格<span class="_ _0"></span>式<span class="_ _0"></span>文件<span class="_ _0"></span>，<span class="_ _0"></span>以</div><div class="t m0 x1 h4 yf ff2 fs1 fc0 sc0 ls0 ws0">方便直接查看和读取避免乱码。<span class="ff3">Elset<span class="_ _1"> </span></span>后面的<span class="_ _1"> </span><span class="ff3 fs0 fc1">xxx<span class="_ _1"> </span></span>对应的是之前已经定义好的单</div><div class="t m0 x1 h4 y10 ff2 fs1 fc0 sc0 ls0 ws0">元<span class="_ _8"></span>集<span class="_ _8"></span>的<span class="_ _8"></span>名<span class="_ _8"></span>称<span class="_ _8"></span>，<span class="_ _8"></span>也<span class="_ _8"></span>就<span class="_ _8"></span>是<span class="_ _8"></span>你<span class="_ _8"></span>想<span class="_ _8"></span>要<span class="_ _8"></span>获<span class="_ _8"></span>取<span class="_ _8"></span>的<span class="_ _8"></span>那<span class="_ _8"></span>部<span class="_ _8"></span>分<span class="_ _8"></span>单<span class="_ _8"></span>元<span class="_ _8"></span>。<span class="_ _3"> </span><span class="ff3">F<span class="_ _6"></span>ile<span class="_ _9"></span> <span class="_ _0"></span>Name<span class="_"> </span><span class="ff2">后<span class="_ _8"></span>面<span class="_ _8"></span>的<span class="_ _7"> </span></span><span class="fs0 fc1">xxx<span class="_"> </span></span><span class="ff2">是</span></span></div><div class="t m0 x1 h4 y11 ff3 fs1 fc0 sc0 ls0 ws0">abaqus<span class="_ _1"> </span><span class="ff2">计算后所<span class="_ _0"></span>提取出的单元<span class="_ _0"></span>矩阵所保存的文件<span class="_ _0"></span>名称，后缀为<span class="_ _9"></span></span>.mtx <span class="_ _0"></span><span class="ff2">，也就是</span></div><div class="t m0 x1 h4 y12 ff2 fs1 fc0 sc0 ls0 ws0">说最终<span class="_ _0"></span>在工作目<span class="_ _0"></span>录中会<span class="_ _0"></span>生成一个<span class="_ _a"> </span><span class="ff4 fs0 fc1">xxx.mtx<span class="_ _3"> </span></span>的文<span class="_ _0"></span>件，可<span class="_ _0"></span>以通过记<span class="_ _0"></span>事打开<span class="_ _0"></span>的刚度矩</div><div class="t m0 x1 h4 y13 ff2 fs1 fc0 sc0 ls0 ws0">阵文件。</div><div class="t m0 x1 h4 y14 ff3 fs1 fc0 sc0 ls0 ws0">2<span class="ff2">、输出总体矩阵</span></div><div class="t m0 x1 h4 y15 ff2 fs1 fc0 sc0 ls0 ws0">对于<span class="_ _0"></span>整<span class="_ _0"></span>体矩<span class="_ _0"></span>阵<span class="_ _0"></span>参数<span class="_ _0"></span>的<span class="_ _0"></span>输出<span class="_ _0"></span>，<span class="_ _0"></span>跟单<span class="_ _0"></span>元<span class="_ _0"></span>矩阵<span class="_ _0"></span>的<span class="_ _0"></span>关键<span class="_ _0"></span>字<span class="_ _0"></span>设<span class="_ _0"></span>置有<span class="_ _0"></span>细<span class="_ _0"></span>微的<span class="_ _0"></span>差<span class="_ _0"></span>别，<span class="_ _0"></span>我<span class="_ _0"></span>们通<span class="_ _0"></span>过</div><div class="t m0 x1 h4 y16 ff2 fs1 fc0 sc0 ls0 ws0">软<span class="_ _0"></span>件<span class="_ _0"></span>自<span class="_ _0"></span>带<span class="_ _0"></span>的<span class="_ _9"></span>标准<span class="_ _9"></span>模板<span class="_ _0"></span>进<span class="_ _0"></span>行<span class="_ _9"></span>解释<span class="_ _9"></span>：<span class="_ _0"></span><span class="ff3">*<span class="fs0">*********************************************</span></span></div><div class="t m0 x1 h5 y17 ff3 fs0 fc0 sc0 ls0 ws0">*************HEADING</div><div class="t m0 x1 h5 y18 ff3 fs0 fc0 sc0 ls0 ws0">…</div><div class="t m0 x1 h5 y19 ff3 fs0 fc0 sc0 ls0 ws0">**</div><div class="t m0 x1 h5 y1a ff3 fs0 fc0 sc0 ls0 ws0">*STEP</div><div class="t m0 x1 h5 y1b ff3 fs0 fc0 sc0 ls0 ws0">Options to de#ne the preloading history for the model.</div><div class="t m0 x1 h5 y1c ff3 fs0 fc0 sc0 ls0 ws0">*END STEP</div><div class="t m0 x1 h5 y1d ff4 fs0 fc1 sc0 ls0 ws0">********************************************************************</div><div class="t m0 x1 h5 y1e ff4 fs0 fc1 sc0 ls0 ws0">*STEP</div><div class="t m0 x1 h5 y1f ff4 fs0 fc2 sc0 ls0 ws0">*MA<span class="_ _b"></span>TRIX<span class="_ _c"> </span> <span class="_ _c"> </span>GENERA<span class="_ _6"></span>T<span class="_ _0"></span>E,<span class="_ _c"> </span> <span class="_ _c"> </span>STIFFNE<span class="_ _4"></span>S<span class="_ _4"></span>S,<span class="_ _c"> </span> <span class="_ _c"> </span>MAS<span class="_ _4"></span>S,<span class="_ _c"> </span> <span class="_ _c"> </span>VISCOU<span class="_ _4"></span>S</div><div class="t m0 x1 h5 y20 ff4 fs0 fc2 sc0 ls0 ws0">DAMPING,STRUCTURAL DAMPING, L<span class="_ _4"></span>OA<span class="_ _4"></span>D</div><div class="t m0 x1 h5 y21 ff4 fs0 fc2 sc0 ls0 ws0">*MA<span class="_ _b"></span>TRIX <span class="_ _0"></span>OUTPUT<span class="_ _d"></span>, STIFFNES<span class="_ _4"></span>S, <span class="_ _0"></span>MAS<span class="_ _4"></span>S, VISCOUS <span class="_ _0"></span>DAMPING,STRUCTURAL</div><div class="t m0 x1 h5 y22 ff4 fs0 fc2 sc0 ls0 ws0">DAMPING, L<span class="_ _4"></span>OA<span class="_ _4"></span>D,<span class="_ _0"></span> FORMA<span class="_ _6"></span>T<span class="_ _0"></span>=MA<span class="_ _b"></span>TRIX INPUT</div><div class="t m0 x1 h5 y23 ff3 fs0 fc1 sc0 ls0 ws0">*BOUND<span class="_ _4"></span>AR<span class="_ _4"></span>Y</div><div class="t m0 x1 h5 y24 ff3 fs0 fc1 sc0 ls0 ws0">Options to de#ne the boundary conditions for the <span class="_ _0"></span>matrix generation step.</div><div class="t m0 x1 h5 y25 ff3 fs0 fc1 sc0 ls0 ws0">**</div><div class="t m0 x1 h5 y26 ff3 fs0 fc1 sc0 ls0 ws0">*L<span class="_ _4"></span>OAD CASE, NAME=LC1</div><div class="t m0 x1 h5 y27 ff3 fs0 fc1 sc0 ls0 ws0">Options to de#ne the loading for the #rst load <span class="_ _0"></span>case.</div><div class="t m0 x1 h5 y28 ff3 fs0 fc1 sc0 ls0 ws0">*END L<span class="_ _4"></span>OAD CASE</div><div class="t m0 x1 h5 y29 ff3 fs0 fc1 sc0 ls0 ws0">**</div><div class="t m0 x1 h5 y2a ff3 fs0 fc1 sc0 ls0 ws0">*L<span class="_ _4"></span>OAD CASE, NAME=LC2</div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div> </body> </html>