COMSOL超声管道导波检测技术：侧面等效力源激励下的钢管裂纹识别与点探针接收波形分析,COMSOL超声管道导波检测技术：利用等效力源激励对特定钢管进行高精度200kHz导波检测与裂纹识别,comso
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COMSOL超声管道导波检测技术：侧面等效力源激励下的钢管裂纹识别与点探针接收波形分析,COMSOL超声管道导波检测技术：利用等效力源激励对特定钢管进行高精度200kHz导波检测与裂纹识别,comsol超声管道导波利用侧面等效力源激励，对外直径40mm，壁厚3mm的钢管进行200kHz下的导波检测，在x=200mm位置处设置裂纹缺陷，在x=120mm位置处设置点探针。遇到裂纹前后的声场图如图1和2所示，点探针接收波形如图3所示，第一个波为始波，第二个为裂纹反射波。模型为6.1版本 ,COMSOL超声；管道导波；侧面等效力源激励；外径40mm壁厚3mm钢管；导波检测200kHz；裂纹缺陷；X=200mm裂纹位置；点探针X=120mm位置；模型版本6.1；声场图对比；波接收波形分析。,COMSOL超声导波检测：40mm钢管中裂纹缺陷的精确识别 <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/90401729/2/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/90401729/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">**<span class="ff2">基于<span class="_ _0"> </span></span>COMSOL<span class="_ _1"> </span><span class="ff2">的超声管道导波检测技术研究</span>**</div><div class="t m0 x1 h2 y2 ff2 fs0 fc0 sc0 ls0 ws0">在现代工业中<span class="ff3">，</span>管道的安全性和完整性检测至关重要<span class="ff4">。</span>特别是在石油<span class="ff4">、</span>化工等行业<span class="ff3">，</span>管道的微小缺陷</div><div class="t m0 x1 h2 y3 ff2 fs0 fc0 sc0 ls0 ws0">可能导致严重的后果<span class="ff4">。</span>超声导波检测技术因其非接触<span class="ff4">、</span>高效率的特点成为其中的一种重要检测手段<span class="ff4">。</span></div><div class="t m0 x1 h2 y4 ff2 fs0 fc0 sc0 ls0 ws0">本文基于<span class="_ _0"> </span><span class="ff1">COMSOL Multiphysics<span class="_ _1"> </span></span>软件<span class="ff3">，</span>针对特定规格的钢管在<span class="_ _0"> </span><span class="ff1">200kHz<span class="_ _1"> </span></span>频率下的超声导波检测进</div><div class="t m0 x1 h2 y5 ff2 fs0 fc0 sc0 ls0 ws0">行了深入研究<span class="ff4">。</span></div><div class="t m0 x1 h2 y6 ff1 fs0 fc0 sc0 ls0 ws0">**<span class="ff2">一<span class="ff4">、</span>研究背景与意义</span>**</div><div class="t m0 x1 h2 y7 ff2 fs0 fc0 sc0 ls0 ws0">随着科技的发展<span class="ff3">，</span>超声导波检测技术已成为评估管道健康状态的重要手段<span class="ff4">。</span>其利用超声波在管道中的</div><div class="t m0 x1 h2 y8 ff2 fs0 fc0 sc0 ls0 ws0">传播特性<span class="ff3">，</span>通过接收反射波来分析管道内部的缺陷情况<span class="ff4">。</span>对于本研究的对象<span class="ff1">——</span>直径为<span class="_ _0"> </span><span class="ff1">40mm<span class="ff4">、</span></span>壁厚为</div><div class="t m0 x1 h2 y9 ff1 fs0 fc0 sc0 ls0 ws0">3mm<span class="_ _1"> </span><span class="ff2">的钢管<span class="ff3">，</span>在<span class="_ _0"> </span></span>200kHz<span class="_ _1"> </span><span class="ff2">频率下进行导波检测具有极其重要的实际意义<span class="ff4">。</span></span></div><div class="t m0 x1 h2 ya ff1 fs0 fc0 sc0 ls0 ws0">**<span class="ff2">二<span class="ff4">、</span>研究方法与模型建立</span>**</div><div class="t m0 x1 h2 yb ff2 fs0 fc0 sc0 ls0 ws0">本研究采用<span class="_ _0"> </span><span class="ff1">COMSOL Multiphysics 6.1<span class="_ _1"> </span></span>版本进行建模和仿真分析<span class="ff4">。</span>利用软件的声学模块<span class="ff3">，</span>结合侧</div><div class="t m0 x1 h2 yc ff2 fs0 fc0 sc0 ls0 ws0">面等效力源激励方法<span class="ff3">，</span>模拟了超声导波在钢管中的传播过程<span class="ff4">。</span>特别关注在<span class="_ _0"> </span><span class="ff1">x=200mm<span class="_ _1"> </span></span>处设置的裂纹缺</div><div class="t m0 x1 h2 yd ff2 fs0 fc0 sc0 ls0 ws0">陷和<span class="_ _0"> </span><span class="ff1">x=120mm<span class="_ _1"> </span></span>处的点探针的作用和影响<span class="ff4">。</span></div><div class="t m0 x1 h2 ye ff1 fs0 fc0 sc0 ls0 ws0">**<span class="ff2">三<span class="ff4">、</span>实验过程与结果分析</span>**</div><div class="t m0 x1 h2 yf ff2 fs0 fc0 sc0 ls0 ws0">在实验过程中<span class="ff3">，</span>首先通过侧面等效力源激励产生超声导波<span class="ff3">，</span>使其在钢管中传播<span class="ff4">。</span>当导波遇到裂纹时<span class="ff3">，</span></div><div class="t m0 x1 h2 y10 ff2 fs0 fc0 sc0 ls0 ws0">会产生反射波<span class="ff4">。</span>这些反射波被点探针接收并记录下来<span class="ff4">。</span>通过对比分析遇到裂纹前后的声场图和点探针</div><div class="t m0 x1 h2 y11 ff2 fs0 fc0 sc0 ls0 ws0">接收的波形图<span class="ff3">，</span>我们可以清晰地看到裂纹对超声导波的影响<span class="ff4">。</span>如图<span class="_ _0"> </span><span class="ff1">1<span class="_ _1"> </span></span>和图<span class="_ _0"> </span><span class="ff1">2<span class="_ _1"> </span></span>所示<span class="ff3">，</span>分别是遇到裂纹前</div><div class="t m0 x1 h2 y12 ff2 fs0 fc0 sc0 ls0 ws0">后的声场图<span class="ff3">，</span>可以看出裂纹对声场产生了明显的干扰<span class="ff4">。</span>而图<span class="_ _0"> </span><span class="ff1">3<span class="_ _1"> </span></span>则展示了点探针接收到的波形<span class="ff3">，</span>其中第</div><div class="t m0 x1 h2 y13 ff2 fs0 fc0 sc0 ls0 ws0">一个波为始波<span class="ff3">，</span>第二个则为裂纹反射波<span class="ff4">。</span></div><div class="t m0 x1 h2 y14 ff1 fs0 fc0 sc0 ls0 ws0">**<span class="ff2">四<span class="ff4">、</span>裂纹识别与导波特性分析</span>**</div><div class="t m0 x1 h2 y15 ff2 fs0 fc0 sc0 ls0 ws0">通过对接收到的波形进行细致分析<span class="ff3">，</span>我们可以识别出裂纹的存在<span class="ff4">。</span>裂纹的存在会导致超声导波的反射</div><div class="t m0 x1 h2 y16 ff2 fs0 fc0 sc0 ls0 ws0">和散射<span class="ff3">，</span>从而改变波形的特征<span class="ff4">。</span>此外<span class="ff3">，</span>通过对导波在钢管中的传播特性进行研究<span class="ff3">，</span>我们可以进一步了</div><div class="t m0 x1 h2 y17 ff2 fs0 fc0 sc0 ls0 ws0">解裂纹对导波的影响机制<span class="ff4">。</span>这为后续的优化检测方法和提高检测精度提供了重要的理论依据<span class="ff4">。</span></div><div class="t m0 x1 h2 y18 ff1 fs0 fc0 sc0 ls0 ws0">**<span class="ff2">五<span class="ff4">、</span>模型优化与未来展望</span>**</div><div class="t m0 x1 h2 y19 ff2 fs0 fc0 sc0 ls0 ws0">虽然本研究所采用的<span class="_ _0"> </span><span class="ff1">COMSOL<span class="_ _1"> </span></span>模型已经取得了一定的成果<span class="ff3">，</span>但仍存在诸多可以优化的地方<span class="ff4">。</span>未来<span class="ff3">，</span>我</div><div class="t m0 x1 h2 y1a ff2 fs0 fc0 sc0 ls0 ws0">们将进一步研究如何提高模型的精度和效率<span class="ff3">，</span>以便更好地应用于实际检测中<span class="ff4">。</span>同时<span class="ff3">，</span>我们也将关注其</div><div class="t m0 x1 h2 y1b ff2 fs0 fc0 sc0 ls0 ws0">他类型的缺陷对超声导波的影响<span class="ff3">，</span>以扩展本研究的应用范围<span class="ff4">。</span></div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>