COMSOL空气耦合超声仿真模型系列：多模态缺陷检测与表征技术,基于COMSOL的空气耦合超声仿真模型：涵盖Lamb波、纵波穿透及表面波检测多种应用,comsol空气耦合超声仿真模型图1为空气耦合超
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COMSOL空气耦合超声仿真模型系列：多模态缺陷检测与表征技术,基于COMSOL的空气耦合超声仿真模型：涵盖Lamb波、纵波穿透及表面波检测多种应用,comsol空气耦合超声仿真模型图1为空气耦合超声A0模态Lamb波检测2mm厚铝板内部气泡的模型。(模型编号：1＃)图2为三维空耦导波检测2mm铝板，为节约内存，发射端含空气，未设缺陷，入射角可调。(模型编号：2＃)图3为空气耦合超声纵波穿透法C扫(其中的一个1mm间隔线扫)检测2mm厚钢板内部气泡的模型。分单点测量和参数化扫描两种(模型编号：3＃)图4为空气耦合超声表面波法检测表面开口裂纹缺陷模型。若无缺陷，右侧接收探头能接收到正常波形。(模型编号：4＃)图5和图6分别为变厚度弯曲钢板有 无气泡缺陷时的的纵波穿透法模型。(模型编号：5＃)注：这5个现成的模型中，二维，三维都有，请对应拿后，收到模型点计算跑完即可出结果。,comsol; 空气耦合超声; 仿真模型; 检测; 模型编号; 模态Lamb波; 气泡; 三维空耦导波; 发射端; 入射角; 单点测量; 参数化扫描; 纵波穿透法; 表面开口裂纹缺陷。, <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/90434212/2/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/90434212/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">**<span class="ff2">空气耦合超声仿真模型的应用研究</span>**</div><div class="t m0 x1 h2 y2 ff2 fs0 fc0 sc0 ls0 ws0">在非接触式超声波检测技术中，<span class="_ _0"></span>空气耦合超声仿真模型以其独特的优势，<span class="_ _0"></span>正逐渐成为工业无</div><div class="t m0 x1 h2 y3 ff2 fs0 fc0 sc0 ls0 ws0">损检测领域的重要工具。本<span class="_ _1"></span>文将介绍几种基于<span class="_ _2"> </span><span class="ff1">COMSOL<span class="_"> </span></span>平台的空气耦合超声仿真模型，包</div><div class="t m0 x1 h2 y4 ff2 fs0 fc0 sc0 ls0 ws0">括<span class="_ _2"> </span><span class="ff1">A0<span class="_ _3"> </span></span>模态<span class="_ _3"> </span><span class="ff1">Lamb<span class="_"> </span></span>波、<span class="_ _4"></span>三维空耦导波、<span class="_ _4"></span>纵波穿透法<span class="_ _2"> </span><span class="ff1">C<span class="_ _3"> </span></span>扫以及表面波法等模型，<span class="_ _4"></span>并对其应用进</div><div class="t m0 x1 h2 y5 ff2 fs0 fc0 sc0 ls0 ws0">行探讨。</div><div class="t m0 x1 h2 y6 ff1 fs0 fc0 sc0 ls0 ws0">**<span class="ff2">一、模型概述</span>**</div><div class="t m0 x1 h2 y7 ff1 fs0 fc0 sc0 ls0 ws0">1. **<span class="ff2">图<span class="_ _3"> </span></span>1<span class="ff2">：空气耦合超声<span class="_ _2"> </span></span>A0<span class="_ _3"> </span><span class="ff2">模态<span class="_ _2"> </span></span>Lamb<span class="_"> </span><span class="ff2">波检测模型</span>**</div><div class="t m0 x1 h2 y8 ff2 fs0 fc0 sc0 ls0 ws0">该模型用于检测<span class="_ _3"> </span><span class="ff1">2mm<span class="_"> </span></span>厚铝板内部的气泡。<span class="_ _0"></span><span class="ff1">A0<span class="_ _3"> </span><span class="ff2">模态<span class="_ _2"> </span></span>Lamb<span class="_ _3"> </span><span class="ff2">波因其特殊的传播特性，<span class="_ _0"></span>在铝板内</span></span></div><div class="t m0 x1 h2 y9 ff2 fs0 fc0 sc0 ls0 ws0">部传播时对微小气泡具有较高的敏感性。<span class="_ _0"></span>通过仿真模拟，<span class="_ _0"></span>可以精确地预测和评估铝板内部气</div><div class="t m0 x1 h2 ya ff2 fs0 fc0 sc0 ls0 ws0">泡的分布和大小。</div><div class="t m0 x1 h2 yb ff1 fs0 fc0 sc0 ls0 ws0">**<span class="ff2">模型编号：</span>1<span class="ff2">＃</span>**</div><div class="t m0 x1 h2 yc ff1 fs0 fc0 sc0 ls0 ws0">2. **<span class="ff2">图<span class="_ _3"> </span></span>2<span class="ff2">：三维空耦导波检测模型</span>**</div><div class="t m0 x1 h2 yd ff2 fs0 fc0 sc0 ls0 ws0">为了节约内存，<span class="_ _5"></span>该模型在发射端采用了空气耦合的方式，<span class="_ _5"></span>并且未设置缺陷。<span class="_ _5"></span>该模型可以调整</div><div class="t m0 x1 h2 ye ff2 fs0 fc0 sc0 ls0 ws0">入射角，<span class="_ _6"></span>适用于对<span class="_ _3"> </span><span class="ff1">2mm<span class="_"> </span></span>厚的铝板进行全方位的检测。<span class="_ _6"></span>三维仿真可以更真实地反映超声波在</div><div class="t m0 x1 h2 yf ff2 fs0 fc0 sc0 ls0 ws0">铝板中的传播路径和交互情况。</div><div class="t m0 x1 h2 y10 ff1 fs0 fc0 sc0 ls0 ws0">**<span class="ff2">模型编号：</span>2<span class="ff2">＃</span>**</div><div class="t m0 x1 h2 y11 ff1 fs0 fc0 sc0 ls0 ws0">3. **<span class="ff2">图<span class="_ _3"> </span></span>3<span class="ff2">：空气耦合超声纵波穿透法<span class="_ _2"> </span></span>C<span class="_ _3"> </span><span class="ff2">扫模型</span>**</div><div class="t m0 x1 h2 y12 ff2 fs0 fc0 sc0 ls0 ws0">该模型用于检测<span class="_ _3"> </span><span class="ff1">2mm<span class="_"> </span></span>厚钢板内部的气泡。<span class="_ _5"></span>采用纵波穿透法，<span class="_ _5"></span>通过<span class="_ _2"> </span><span class="ff1">C<span class="_ _3"> </span></span>扫方式实现对钢板内部</div><div class="t m0 x1 h2 y13 ff2 fs0 fc0 sc0 ls0 ws0">的气泡进行全面扫描。<span class="_ _0"></span>该模型分为单点测量和参数化扫描两种方式，<span class="_ _0"></span>可以根据实际需求进行</div><div class="t m0 x1 h2 y14 ff2 fs0 fc0 sc0 ls0 ws0">选择。</div><div class="t m0 x1 h2 y15 ff1 fs0 fc0 sc0 ls0 ws0">**<span class="ff2">模型编号：</span>3<span class="ff2">＃</span>**</div><div class="t m0 x1 h2 y16 ff1 fs0 fc0 sc0 ls0 ws0">4. **<span class="ff2">图<span class="_ _3"> </span></span>4<span class="ff2">：空气耦合超声表面波法检测表面开口裂纹缺陷模型</span>**</div><div class="t m0 x1 h2 y17 ff2 fs0 fc0 sc0 ls0 ws0">该模型利用空气耦合超声表面波法，<span class="_ _7"></span>用于检测金属表面的开口裂纹缺陷。<span class="_ _7"></span>若金属表面无缺陷，</div><div class="t m0 x1 h2 y18 ff2 fs0 fc0 sc0 ls0 ws0">右侧接收探头能够接收到正常的波形，从而实现对表面缺陷的判断。</div><div class="t m0 x1 h2 y19 ff1 fs0 fc0 sc0 ls0 ws0">**<span class="ff2">模型编号：</span>4<span class="ff2">＃</span>**</div><div class="t m0 x1 h2 y1a ff1 fs0 fc0 sc0 ls0 ws0">5. **<span class="ff2">图<span class="_ _3"> </span></span>5<span class="_"> </span><span class="ff2">和图<span class="_ _3"> </span></span>6<span class="ff2">：变厚度弯曲钢板纵波穿透法模型</span>**</div><div class="t m0 x1 h2 y1b ff2 fs0 fc0 sc0 ls0 ws0">这两组模型分别展示了变厚度弯曲钢板存在与不存在气泡缺陷时的纵波穿透法检测情况。<span class="_ _8"></span>通</div><div class="t m0 x1 h2 y1c ff2 fs0 fc0 sc0 ls0 ws0">过对这两种情况的仿真对比，可以更准确地判断钢板内部的气泡缺陷情况。</div></div><div class="pi" data-data='{"ctm":[1.611830,0.000000,0.000000,1.611830,0.000000,0.000000]}'></div></div>