Study on the method for identifying cable corrosion degree based on multi-domain magnetic characteristics considering load influence

IF 8 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY Construction and Building Materials Pub Date : 2025-03-14 Epub Date: 2025-02-14 DOI:10.1016/j.conbuildmat.2025.140211

Li Jiang , Hong Zhang , Qingxia Tao , Xiaotian Wu , Jianting Zhou , Runchuan Xia

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Abstract

The non-destructive quantitative assessment of cable corrosion is a pressing issue for evaluating the condition of in-service cables. This study established a magnetic dipole model for corrosion damage under load. A prediction method for cable corrosion degree was proposed, combining multi-domain magnetic characteristic values with Whale Optimization Algorithm-Support Vector Regression (WOA-SVR). Results indicate that the combination of multi-domain and multi-dimensional magnetic characteristic values effectively enhances the accuracy of cable corrosion degree inversion. The proposed WOA-SVR model demonstrates strong performance in predicting cable corrosion degree, with a maximum absolute error of 0.66 and a maximum relative error of 5.14 %. This method improves identification accuracy by approximately sixfold compared to traditional approaches, providing theoretical support and new insights for identifying in-service cable corrosion levels.

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考虑载荷影响的多畴磁特性识别电缆腐蚀程度方法研究

电缆腐蚀的无损定量评估是评估在役电缆状态的一个迫切问题。本研究建立了载荷作用下腐蚀损伤的磁偶极子模型。提出了一种将多域磁特征值与鲸鱼优化算法-支持向量回归（WOA-SVR）相结合的电缆腐蚀程度预测方法。结果表明，多域、多维磁特征值的结合有效提高了电缆腐蚀度反演的精度。WOA-SVR模型对电缆腐蚀程度的预测效果较好，最大绝对误差为0.66，最大相对误差为5.14 %。与传统方法相比，该方法将识别精度提高了约6倍，为识别在用电缆腐蚀水平提供了理论支持和新的见解。

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来源期刊

Construction and Building Materials 工程技术-材料科学：综合

CiteScore

13.80

自引率

21.60%

发文量

3632

审稿时长

82 days

期刊介绍： Construction and Building Materials offers an international platform for sharing innovative and original research and development in the realm of construction and building materials, along with their practical applications in new projects and repair practices. The journal publishes a diverse array of pioneering research and application papers, detailing laboratory investigations and, to a limited extent, numerical analyses or reports on full-scale projects. Multi-part papers are discouraged. Additionally, Construction and Building Materials features comprehensive case studies and insightful review articles that contribute to new insights in the field. Our focus is on papers related to construction materials, excluding those on structural engineering, geotechnics, and unbound highway layers. Covered materials and technologies encompass cement, concrete reinforcement, bricks and mortars, additives, corrosion technology, ceramics, timber, steel, polymers, glass fibers, recycled materials, bamboo, rammed earth, non-conventional building materials, bituminous materials, and applications in railway materials.