通信与信息技术Issue(2)：16-20,5.
基于磁致伸缩导波的桥梁缆索缺陷检测技术研究
Research on bridge cable defect detection technology based on magnetostrictive guided waves
摘要
Abstract
Magnetostrictive guided waves can detect long-distance cable defects like corrosion and broken wires.A magnetostrictive guided-wave-based damage identification model was established via finite element analysis to study the effect of various cable parame-ters on the displacement field in the damage zone,and a relevant experimental device was designed.Research shows that with Hanning window(20 kHz)current excitation,defect-location echo waveforms can be clearly identified.The displacement field near the damage strengthens as the damage proportion increases.At the same cross-section proportion,the greater the defect width,the stronger the sur-rounding displacement field.In terms of transverse energy distribution,the displacement field peaks near the cable center and guided waves can propagate at least 18 meters in the cable.These findings confirm the technology's effectiveness for cable-defect detection and offer a basis for bridge-maintenance and cable-replacement decisions.关键词
桥梁缆索/磁致伸缩导波/缺陷检测/有限元仿真Key words
Bridge cables/Magnetostrictive guided waves/Defect detection/Finite element simulation分类
交通工程引用本文复制引用
隋涛,寿先庆,张双楠..基于磁致伸缩导波的桥梁缆索缺陷检测技术研究[J].通信与信息技术,2026,(2):16-20,5.基金项目
辽宁省教育厅高等学校基本科研项目(项目编号:JYTMS20230199) （项目编号:JYTMS20230199）
