COMSOL导波检测技术在5mm厚15mm宽小宽度板上的Lamb波检测研究,COMSOL导波检测技术：对5mm厚、15mm宽小板的Lamb波无损检测实践,comsol导波检测小宽度板对厚5mm，宽1
资源内容介绍
COMSOL导波检测技术在5mm厚15mm宽小宽度板上的Lamb波检测研究,COMSOL导波检测技术：对5mm厚、15mm宽小板的Lamb波无损检测实践,comsol导波检测小宽度板对厚5mm，宽15mm的小宽度板进行lamb检测，未设缺陷，声场如图所示。,关键词：comsol；导波检测；小宽度板；Lamb检测；声场。,COMSOL导波检测：小宽度板Lamb波检测无缺陷案例 <link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/base.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/fancy.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/90402528/2/raw.css" rel="stylesheet"/><div id="sidebar" style="display: none"><div id="outline"></div></div><div class="pf w0 h0" data-page-no="1" id="pf1"><div class="pc pc1 w0 h0"><img alt="" class="bi x0 y0 w1 h1" src="/image.php?url=https://csdnimg.cn/release/download_crawler_static/90402528/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">COMSOL<span class="_ _0"> </span><span class="ff2">在导波检测小宽度板中的应用分析</span></div><div class="t m0 x1 h2 y2 ff2 fs0 fc0 sc0 ls0 ws0">摘要<span class="ff3">：</span></div><div class="t m0 x1 h2 y3 ff2 fs0 fc0 sc0 ls0 ws0">本文主要探讨了使用<span class="_ _1"> </span><span class="ff1">COMSOL Multiphysics<span class="_ _0"> </span></span>软件对小宽度板进行导波检测的方法及应用<span class="ff4">。</span>针对厚</div><div class="t m0 x1 h2 y4 ff2 fs0 fc0 sc0 ls0 ws0">度为<span class="_ _1"> </span><span class="ff1">5mm<span class="ff4">、</span></span>宽度为<span class="_ _1"> </span><span class="ff1">15mm<span class="_ _0"> </span></span>的小宽度板<span class="ff3">，</span>进行了<span class="_ _1"> </span><span class="ff1">Lamb<span class="_ _0"> </span></span>波检测<span class="ff3">，</span>且在没有设置缺陷的情况下<span class="ff3">，</span>通过仿真</div><div class="t m0 x1 h2 y5 ff2 fs0 fc0 sc0 ls0 ws0">模拟展示了声场的分布情况<span class="ff4">。</span>文章重点分析了导波检测的原理<span class="ff4">、<span class="ff1">COMSOL<span class="_ _0"> </span></span></span>软件的建模过程<span class="ff4">、</span>声场特性</div><div class="t m0 x1 h2 y6 ff2 fs0 fc0 sc0 ls0 ws0">以及未来可能的研究方向<span class="ff4">。</span></div><div class="t m0 x1 h2 y7 ff2 fs0 fc0 sc0 ls0 ws0">一<span class="ff4">、</span>导波检测概述</div><div class="t m0 x1 h2 y8 ff2 fs0 fc0 sc0 ls0 ws0">导波检测是一种广泛应用于无损检测领域的技术<span class="ff3">，</span>尤其适用于薄板结构<span class="ff4">。</span>它通过激发和接收导波<span class="ff3">（</span>如</div><div class="t m0 x1 h2 y9 ff1 fs0 fc0 sc0 ls0 ws0">Lamb<span class="_ _0"> </span><span class="ff2">波<span class="ff3">）</span>来实现对材料内部结构的检测<span class="ff4">。</span>导波在板材内部传播时<span class="ff3">，</span>遇到缺陷会产生反射<span class="ff4">、</span>散射等现</span></div><div class="t m0 x1 h2 ya ff2 fs0 fc0 sc0 ls0 ws0">象<span class="ff3">，</span>通过分析这些现象<span class="ff3">，</span>可以评估材料的完整性<span class="ff4">。</span></div><div class="t m0 x1 h2 yb ff2 fs0 fc0 sc0 ls0 ws0">二<span class="ff4">、<span class="ff1">COMSOL<span class="_ _0"> </span></span></span>软件在导波检测中的应用</div><div class="t m0 x1 h2 yc ff1 fs0 fc0 sc0 ls0 ws0">COMSOL Multiphysics<span class="_ _0"> </span><span class="ff2">是一款强大的多物理场仿真软件<span class="ff3">，</span>广泛应用于力学<span class="ff4">、</span>流体<span class="ff4">、</span>电磁<span class="ff4">、</span>热传导</span></div><div class="t m0 x1 h2 yd ff2 fs0 fc0 sc0 ls0 ws0">等多个领域<span class="ff4">。</span>在导波检测中<span class="ff3">，<span class="ff1">COMSOL<span class="_ _0"> </span></span></span>可以模拟导波在板材中的传播过程<span class="ff3">，</span>为实验提供理论支持<span class="ff4">。</span></div><div class="t m0 x1 h2 ye ff1 fs0 fc0 sc0 ls0 ws0">1.<span class="_ _2"> </span><span class="ff2">建模过程</span></div><div class="t m0 x1 h2 yf ff2 fs0 fc0 sc0 ls0 ws0">在<span class="_ _1"> </span><span class="ff1">COMSOL<span class="_ _0"> </span></span>中<span class="ff3">，</span>首先需要创建小宽度板<span class="ff3">（</span>厚度为<span class="_ _1"> </span><span class="ff1">5mm<span class="ff3">，</span></span>宽度为<span class="_ _1"> </span><span class="ff1">15mm<span class="ff3">）</span></span>的几何模型<span class="ff4">。</span>然后<span class="ff3">，</span>设置材料</div><div class="t m0 x1 h2 y10 ff2 fs0 fc0 sc0 ls0 ws0">的物理属性<span class="ff3">，</span>如密度<span class="ff4">、</span>声速等<span class="ff4">。</span>接着<span class="ff3">，</span>定义激发的导波类型<span class="ff3">（</span>如<span class="_ _1"> </span><span class="ff1">Lamb<span class="_ _0"> </span></span>波<span class="ff3">），</span>并设置激发和接收导波</div><div class="t m0 x1 h2 y11 ff2 fs0 fc0 sc0 ls0 ws0">的边界条件<span class="ff4">。</span>最后<span class="ff3">，</span>运行仿真<span class="ff3">，</span>观察导波在板材中的传播过程<span class="ff4">。</span></div><div class="t m0 x1 h2 y12 ff1 fs0 fc0 sc0 ls0 ws0">2.<span class="_ _2"> </span><span class="ff2">声场特性分析</span></div><div class="t m0 x1 h2 y13 ff2 fs0 fc0 sc0 ls0 ws0">在没有设置缺陷的情况下<span class="ff3">，</span>通过<span class="_ _1"> </span><span class="ff1">COMSOL<span class="_ _0"> </span></span>模拟得到的声场分布图可以展示导波在板材中的传播情况<span class="ff4">。</span></div><div class="t m0 x1 h2 y14 ff2 fs0 fc0 sc0 ls0 ws0">通过分析声场的分布<span class="ff3">，</span>可以了解导波的模态<span class="ff4">、</span>传播速度等信息<span class="ff4">。</span>这些信息对于评估材料的完整性具有</div><div class="t m0 x1 h2 y15 ff2 fs0 fc0 sc0 ls0 ws0">重要意义<span class="ff4">。</span></div><div class="t m0 x1 h2 y16 ff2 fs0 fc0 sc0 ls0 ws0">三<span class="ff4">、</span>声场分析</div><div class="t m0 x1 h2 y17 ff2 fs0 fc0 sc0 ls0 ws0">在没有缺陷的小宽度板中<span class="ff3">，</span>导波传播形成的声场呈现出一定的规律性<span class="ff4">。</span>在<span class="_ _1"> </span><span class="ff1">COMSOL<span class="_ _0"> </span></span>模拟结果中<span class="ff3">，</span>可以</div><div class="t m0 x1 h2 y18 ff2 fs0 fc0 sc0 ls0 ws0">看到导波在板材内部传播过程中<span class="ff3">，</span>能量分布相对均匀<span class="ff3">，</span>没有明显的衰减现象<span class="ff4">。</span>这为导波检测提供了良</div><div class="t m0 x1 h2 y19 ff2 fs0 fc0 sc0 ls0 ws0">好的理论基础<span class="ff4">。</span></div><div class="t m0 x1 h2 y1a ff2 fs0 fc0 sc0 ls0 ws0">四<span class="ff4">、</span>未来研究方向</div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>