漏磁探伤机励磁元件分析仿真与优化  

Analysis Simulation and Optimization of Excitation Components of Magnetic Flux Leakage Detector

作　　者：赵章焰[1] 李钟谷 范晨阳 ZHAO Zhang-yan;LI Zhong-gu;FAN Chen-yang(School of Logistics Engineering,Wuhan University of Technology,Hubei Wuhan 430063,China)

机构地区：[1]武汉理工大学物流工程学院,湖北武汉430063

出　　处：《机械设计与制造》2021年第12期67-71,共5页Machinery Design & Manufacture

基　　金：国家重点研发计划港口等领域典型起重机械设计制造与服役过程风险防控关键技术研究(2017YFC0805703)。

摘　　要：针对目前常见的漏磁探伤机能耗高、发热大、结构复杂笨重等缺点,设计一种用稀土永磁体代替励磁线圈的新型漏磁探伤机。对磁场学基本公式进行推导与分析,得出提高永磁体的利用率以及改善磁场均匀性的一般性规律,利用Maxwell有限元分析软件对新型漏磁探伤机的励磁回路进行分析仿真与优化,设计出五种参考模型并进行对比。生产出新型漏磁探伤机励磁部件实物样品,利用磁力计验证仿真与优化的正确性,为漏磁探伤机的升级换代提供全新的思路。Aiming at the shortcomings of the current common magnetic flux leakage testing machine,such as high energy consumption,large heat generation,complicated structure and heavy weight,a new type of magnetic flux leakage testing machine using rare earth permanent magnet instead of excitation coil is designed. The basic formula of magnetic field is deduced and analyzed,and the general rule of improving the utilization rate of permanent magnet and improving the uniformity of magnetic field is obtained. The Maxwell finite element analysis software is used to analyze and simulate the excitation circuit of the new magnetic flux leakage detector. Five reference models were made and compared. The physical sample of the excitation component of the new magnetic flux leakage detector is produced,and the correctness of simulation and optimization is verified by the magnetometer,which provides a new idea for the upgrading of the magnetic flux leakage detector.

关 键 词：漏磁探伤 无损检测 有限元分析 永磁体 磁质比 

分 类 号：TH16[机械工程—机械制造及自动化] TH164