CAJ | 학술논문

起重机金属结构的损伤一般出现在焊缝处，裂纹是损伤中危害最大和最普遍的一种。应用压电阻抗法并借助ANSYS仿真软件对带焊缝钢板进行谐响应分析，采用RMSD指数法研究了基于PZ T传感器的焊缝裂纹损伤程度和定位方法识别。仿真结果表明，压电导纳频谱曲线对裂纹深度和裂纹与PZ T的偏移距离很敏感，呈现出一定的规律性。压电阻抗法可以用于对焊缝裂纹损伤程度和裂纹位置识别的分析。
기중궤금속결구적손상일반출현재한봉처，렬문시손상중위해최대화최보편적일충。응용압전조항법병차조ANSYS방진연건대대한봉강판진행해향응분석，채용RMSD지수법연구료기우PZ T전감기적한봉렬문손상정도화정위방법식별。방진결과표명，압전도납빈보곡선대렬문심도화렬문여PZ T적편이거리흔민감，정현출일정적규률성。압전조항법가이용우대한봉렬문손상정도화렬문위치식별적분석。
The damage of crane metal structure generally appears in the weld .Crack is one of the most harmful and common damage .Adopt the impedance method and use ANSYS to do harmonic response analysis to steel plate with weld and use the RMSD index method to make study of the weld crack damage recognition and location recognition .The result of simulation indicates that the piezoelectric admittance spectrum is sensitive to the depth of crack and the distance between crack and PZT .The result presents certain regularity .The impedance method can be used to analyze the damage level and the location recognition of crack .